U.S. patent number 10,855,099 [Application Number 16/653,469] was granted by the patent office on 2020-12-01 for electronic device and method for wire and wireless charging in electronic device.
This patent grant is currently assigned to Samsung Electronics Co., Ltd.. The grantee listed for this patent is Samsung Electronics Co., Ltd.. Invention is credited to Chihyun Cho, Sungjoon Cho, Hansol Choi, Youngmi Ha, Kuchul Jung, Byungwook Kim, Kyounghoon Kim, Kyoungwon Kim, Yusu Kim, Juhyang Lee, Jungmin Lee, Jeongmin Moon, Kyungmin Park, Yongsang Yun.
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United States Patent |
10,855,099 |
Kim , et al. |
December 1, 2020 |
Electronic device and method for wire and wireless charging in
electronic device
Abstract
According to various embodiments, an electronic device comprises
a battery, a wireless interface including a coil and configured to
wirelessly transmit electric power from the battery via the coil,
and at least one processor configured to: perform a wireless
charging function of wirelessly transmitting electric power to an
external device via the wireless interface, while neither the
electronic device nor the external device is being supplied with
electric power from an external power source via a wire, and based
on identifying that the external device starts being supplied with
electric power from an external power source via a wire while
performing the wireless charging function, stop performing the
wireless charging function of wirelessly transmitting electric
power to the external device.
Inventors: |
Kim; Yusu (Suwon-si,
KR), Kim; Kyoungwon (Suwon-si, KR), Kim;
Kyounghoon (Suwon-si, KR), Kim; Byungwook
(Suwon-si, KR), Moon; Jeongmin (Suwon-si,
KR), Park; Kyungmin (Suwon-si, KR), Lee;
Jungmin (Suwon-si, KR), Lee; Juhyang (Suwon-si,
KR), Jung; Kuchul (Suwon-si, KR), Cho;
Sungjoon (Suwon-si, KR), Cho; Chihyun (Suwon-si,
KR), Choi; Hansol (Suwon-si, KR), Ha;
Youngmi (Suwon-si, KR), Yun; Yongsang (Suwon-si,
KR) |
Applicant: |
Name |
City |
State |
Country |
Type |
Samsung Electronics Co., Ltd. |
Suwon-si |
N/A |
KR |
|
|
Assignee: |
Samsung Electronics Co., Ltd.
(Suwon-si, KR)
|
Family
ID: |
1000005218764 |
Appl.
No.: |
16/653,469 |
Filed: |
October 15, 2019 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20200119581 A1 |
Apr 16, 2020 |
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Foreign Application Priority Data
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|
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Oct 15, 2018 [KR] |
|
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10-2018-0122627 |
Feb 18, 2019 [KR] |
|
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10-2019-0018837 |
Feb 19, 2019 [KR] |
|
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10-2019-0019520 |
Oct 14, 2019 [KR] |
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10-2019-0127247 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H02J
50/10 (20160201); H02J 50/80 (20160201); H02J
7/342 (20200101); H02J 7/0047 (20130101) |
Current International
Class: |
H02J
7/00 (20060101); H02J 7/02 (20160101); H02J
50/10 (20160101); H02J 7/34 (20060101); H02J
50/80 (20160101) |
Field of
Search: |
;320/103,108
;307/104 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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2016-144560 |
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Aug 2016 |
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JP |
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10-2012-0052517 |
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May 2012 |
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KR |
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10-2012-0125182 |
|
Nov 2012 |
|
KR |
|
10-2014-0076486 |
|
Jun 2014 |
|
KR |
|
10-1476103 |
|
Dec 2014 |
|
KR |
|
10-2015-0011448 |
|
Feb 2015 |
|
KR |
|
10-2016-0001611 |
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Jan 2016 |
|
KR |
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10-2018-0106217 |
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Oct 2018 |
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KR |
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2018/004117 |
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Jan 2018 |
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WO |
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Other References
Yummy999, Mate 20 Pro wireless reverse charging function
test[disc], reddit.com, r/Huawui, Jan. 2019, screenshot taken Oct.
15, 2019,
https://www.reddit.com/r/Huawei/comments/a0fpti/mate_20_pro_wireless_reve-
rse_charging_function/. cited by applicant .
Zendure Team, How to Use Huawei Mate 20 Pro's Reverse Wireless
Charging, zendure.com, Dec. 5, 2017, screenshot taken Oct. 15,
2019,
https://zendure.com/blogs/how-to/how-to-use-huawei-mate-20-pro-reverse-wi-
reless-charging. cited by applicant .
Szeszo, Huawei Mate 20 Pro works as a Wireless Charger Pad (worth
to charge with it?), YouTube.com, Nov. 17, 2018, screenshot taken
Oct. 15, 2019, https://youtu.be/izhgnCdtDV4. cited by applicant
.
Extended European Search Report dated Dec. 10, 2019, issued in
European Application No. 19203162.3-1202. cited by applicant .
International Search Report dated Jan. 23, 2020, issued in
International Application No. PCT/KR2019/013531. cited by applicant
.
Written Opinion dated Jan. 23, 2020, issued in International
Application No. PCT/KR2019/013531. cited by applicant .
Extended European Search Report dated Jul. 7, 2020, issued in
European Application No. 20176893.4-1202. cited by
applicant.
|
Primary Examiner: Zhou; Zixuan
Attorney, Agent or Firm: Jefferson IP Law, LLP
Claims
What is claimed is:
1. An electronic device comprising: a battery; a coil; and at least
one processor configured to: while the electronic device is not
being supplied with power from an external power source via a wire,
based on a remaining amount of power in the battery being below a
threshold, disable a wireless power transmission function, while
the remaining amount of power in the battery is below the
threshold, identify that the electronic device is being supplied
with power from the external power source via the wire while the
electronic device is being supplied with power from the external
power source via the wire and the remaining amount of power in the
battery is below the threshold, receive a request for enabling the
wireless power transmission function, and while the electronic
device is being supplied with power from the external power source
via the wire and the remaining amount of power in the battery is
below the threshold, based on the request, enable the wireless
power transmission function to wirelessly transmit power to an
external device via the coil, wherein, while the electronic device
is being supplied with power from the external power source via the
wire, an amount of power wirelessly transmitting to the external
device via the coil is controlled based on information
corresponding to the remaining amount of power in the battery, the
remaining amount of power in the battery being increased based on
the battery being charged using power supplied from the external
power source.
2. The electronic device of claim 1, further comprising: a display,
wherein the at least one processor is configured to provide a user
interface on the display for initiating the wireless power
transmission function, and wherein the request is received via the
user interface.
3. The electronic device of claim 1, wherein the at least one
processor is configured to: determine whether to discontinue the
wireless transmitting of power to the external device via the coil,
and discontinue the wireless transmitting of power to the external
device via the coil being a determination to discontinue the
wireless transmitting of power to the external device via the coil,
wherein, in a case of the external device being supplied with power
from another external power source via another wire, the result of
the determination is the determination to discontinue the wireless
transmitting of power to the external device via the coil.
4. The electronic device of claim 1, wherein the at least one
processor is configured to: identify a type of the external device
while wirelessly transmitting power to the external device via the
coil, determine an amount of power corresponding to the identified
type of the external device, and wirelessly transmit the determined
amount of power to the external device via the coil.
5. The electronic device of claim 1, further comprising: a display,
wherein the at least one processor is configured to: display a
notification on the display about discontinuing wireless
transmission of power to the external device when the wireless
transmitting of power to the external device via the coil is
discontinued.
6. The electronic device of claim 2, wherein the user interface is
provided on the display based on the remaining amount of power in
the battery being above or equal to the threshold, and wherein the
user interface is discontinued from being provided on the display
based on the remaining amount of power in the battery being below
the threshold.
7. The electronic device of claim 2, wherein the user interface is
provided on the display regardless of whether the remaining amount
of power in the battery is above, below, or equal to the threshold
while the electronic device is being supplied power from the
external power source via the wire.
8. The electronic device of claim 1, wherein the battery is charged
using a portion of power supplied from the external power source
that is determined based on the remaining amount of power in the
battery, and the wireless transmitting of power to the external
device via the coil uses a remainder of the power supplied from the
external power source.
9. The electronic device of claim 1, wherein the at least one
processor is configured to: wirelessly transmit power to the
external device via the coil, based on the request without
considering the remaining amount of power in the battery.
10. The electronic device of claim 1, wherein the charging of the
battery and the wireless transmitting of power to the external
device via the coil are alternately performed, wherein the battery
is charged, using power supplied from the external power source via
the wire, during a first designated period, wherein power is
wirelessly transmitted to the external device via the coil, using
power supplied from the external power source via the wire, during
a second designated period, and wherein the at least one processor
is configured to: adjust the first designated period and the second
designated period based on the remaining amount of power in the
battery.
11. The electronic device of claim 10, wherein the first designated
period and the second designated period are adjusted such that a
duration of first designated period is inversely related to the
remaining amount of power in the battery, and a duration of second
designated period is related to the remaining amount of power in
the battery.
12. The electronic device of claim 10, wherein the at least one
processor is configured to: identify the remaining amount of power
in the battery when the electronic device is initially supplied
with power from the external power source via the wire, and adjust
the first designated period so as to wirelessly transmit power to
the external device via the coil during the second designated
period while maintaining the remaining amount of power in the
battery.
13. The electronic device of claim 12, wherein the at least one
processor is configured to: determine whether the external power
source supplying power via the wire supports fast charging, and
wherein the second designated period is adjusted if the external
power source supplying power via the wire does not support fast
charging.
14. The electronic device of claim 10, wherein the at least one
processor is configured to: determine whether the remaining amount
of power in the battery is below the threshold, and adjust the
first designated period so as to wirelessly transmit power to the
external device via the coil during the second designated period
without the remaining amount of power in the battery falling below
the threshold.
15. The electronic device of claim 14, wherein the at least one
processor is configured to: determine whether the external power
source supplying power via the wire supports fast charging, and
wherein the second designated period is adjusted if the external
power source supplying power via the wire does not support fast
charging.
16. The electronic device of claim 10, wherein the at least one
processor is configured to: determine whether the remaining amount
of power in the battery is below a designated value, and when it is
determined that the remaining amount of power in the battery is
below the designated value, adjust the first designated period so
as to charge the battery using the power supplied from the external
power source and adjust the second designated period so as to not
wirelessly transmit power to the external device via the coil.
17. The electronic device of claim 16, wherein the at least one
processor is configured to: determine whether the external power
source supplying power via the wire supports fast charging, and
wherein the second designated period and the second designated
period are adjusted if the external power source supplying power
via the wire does not support fast charging.
18. The electronic device of claim 16, wherein the designated value
is based on a user input.
19. The electronic device of claim 16, further comprising: a
display, wherein, when it is determined that the remaining amount
of power in the battery is below the designated value, the at least
one processor is configured to display a notification on the
display indicating that the battery is preferentially being charged
until the remaining amount of power in the battery is at or above
the designated value.
20. The electronic device of claim 1, wherein the at least one
processor is configured to: determine whether the external power
source supplying power via the wire supports fast charging,
determine whether the remaining amount of power in the battery is
below a designated value, and wherein the at least one processor is
configured to, based on the request, charge the battery using the
power supplied from the external power source during a first
designated period and wirelessly transmit power to the external
device via the coil during a second designated period, when it is
determined that the external power source supplying power via the
wire does not support fast charging and the remaining amount of
power in the battery is below the designated value.
21. The electronic device of claim 3, wherein the at least one
processor is configured to: receive information from the external
device via the coil, and wherein the determination whether to
discontinue the wireless transmitting of power to the external
device via the coil is based on the received information.
22. The electronic device of claim 3, wherein the at least one
processor is configured to: receive information from the external
device via at least one of near-field communication (NFC),
Bluetooth, or Wi-Fi, and wherein the determination whether to
discontinue the wireless transmitting of power to the external
device via the coil is based on the received information.
23. The electronic device of claim 4, wherein, while wirelessly
transmitting power to the external device via the coil, the at
least one processor is configured to: wirelessly transmit first
power corresponding to high power to the external device via the
coil if the external device is capable of being wirelessly charged
with the high power, and wirelessly transmit second power, which
corresponds to low power and is lower than the first power, to the
external device via the coil if the external device is capable of
being wirelessly charged with the low power.
24. The electronic device of claim 1, wherein the at least one
processor is configured to: identify whether a battery of the
external device is fully charged while wirelessly transmitting
power to the external device via the coil, and discontinue the
wireless transmitting of power to the external device via the coil
based on identifying that the battery of the external device is
fully charged.
25. The electronic device of claim 1, wherein the at least one
processor is configured to: identify whether a temperature of the
external device is greater than a designated value while wirelessly
transmitting power to the external device via the coil, and
discontinue the wireless transmitting of power to the external
device based on identifying that the temperature of the external
device is greater than the designated value.
Description
CROSS-REFERENCE TO RELATED APPLICATION(S)
This application is based on and claims priority under 35 U.S.C.
.sctn. 119(a) of a Korean patent application number 10-2018-0122627
filed on Oct. 15, 2018, a Korean patent application number
10-2019-0018837 filed on Feb. 18, 2019, a Korean patent application
number 10-2019-0019520 filed on Feb. 19, 2019, and a Korean patent
application number 10-2019-0127247 filed on Oct. 14, 2019, the
disclosure of each of which is incorporated by reference herein in
its entirety.
BACKGROUND
1 Field
The disclosure relates to an electronic device and a wired/wireless
charging method in an electronic device.
2 Description of Related Art
Recently, proliferation of electronic devices that can be wiredly
and wirelessly charged has increased.
An electronic device, if a wired charging device is connected
thereto according to the related art, may charge a battery by
receiving electric power from the wired charging device by wire,
and if a wireless charging device is connected thereto, may produce
an induction current through a coil by a magnetic induction method,
thereby charging the battery.
The above information is presented as background information only
to assist with an understanding of the disclosure. No determination
has been made, and no assertion is made, as to whether any of the
above might be applicable as prior art with regard to the
disclosure.
SUMMARY
In electronic devices, a charging circuit of a battery is simply
configured to charge the battery by receiving a charging current
from a wired charging device or to charge the battery by means of
an induction current generated by a wireless charging device, but
cannot wirelessly supply electric power of the battery to an
external device according to the related art.
Aspects of the disclosure are to address at least the
above-mentioned problems and/or disadvantages and to provide at
least the advantages described below. Accordingly, an aspect of the
disclosure is to provide an electronic device and a method capable
of transmitting electric power stored in a battery to an external
device.
Another aspect of the disclosure is to provide an electronic device
and a method capable of supplying a designated electric power to an
external device using electric power supplied from a charging
device in the case where the charging device is connected thereto
and charging a battery with the remaining electric power.
Additional aspects will be set forth in part in the description
which follows and, in part, will be apparent from the description,
or may be learned by practice of the presented embodiments.
In accordance with an aspect of the disclosure, an electronic
device is provided. The electronic device comprises a battery, a
wireless interface including a coil and configured to wirelessly
transmit electric power from the battery via the coil, and at least
one processor configured to: perform a wireless charging function
of wirelessly transmitting electric power to an external device via
the wireless interface, while neither the electronic device nor the
external device is being supplied with electric power from an
external power source via a wire, and based on identifying that the
external device starts being supplied with electric power from an
external power source via a wire while performing the wireless
charging function, stop performing the wireless charging function
of wirelessly transmitting electric power to the external
device.
In accordance with another aspect of the disclosure, another
electronic device is provided. The electronic device comprises a
battery, a wireless interface including a coil and configured to
wirelessly transmit electric power from the battery via the coil,
and at least one processor configured to: identify that the
electronic device starts being supplied with electric power from an
external power source via a wire while an external device is not
being supplied with electric power from an external power source
via a wire, and start performing a wireless charging function of
wirelessly transmitting electric power to the external device
regardless of whether a remaining capacity of the battery is above
or below a threshold when the electronic device starts being
supplied with electric power from the external power source via the
wire.
In accordance with another aspect of the disclosure, another
electronic device is provided. The electronic device comprises a
battery, a wireless interface including a coil and configured to
wirelessly transmit electric power from the battery via the coil,
and at least one processor configured to: receive a request for
performing a wireless charging function of wirelessly transmitting
electric power to an external device while the electronic device is
being supplied with electric power from an external power source
via a wire, and the external device is not being supplied with
electric power from an external power source via a wire, and start
performing the wireless charging function of wirelessly
transmitting electric power to the external device despite a
remaining capacity of the battery being below a threshold when the
request is received.
In accordance with another aspect of the disclosure, another
electronic device is provided. The electronic device comprises a
battery, a wireless interface including a coil and configured to
wirelessly transmit electric power from the battery via the coil,
and at least one processor configured to: identify a remaining
capacity of the battery while neither the electronic device nor an
external device is not being supplied with the electric power from
an external power source via a wire, activating a user interface
for performing a wireless charging function of wirelessly
transmitting the electric power from the electronic device to the
external device via the wireless interface based on identifying
that the remaining capacity of the battery is above or equal to a
threshold, and disregarding the user input on the user interface by
deactivating the user interface based on identifying that the
remaining capacity of the battery is below the threshold.
In accordance with an aspect of the disclosure, an electronic
device and a method are provided. The electronic device and the
method include an electric power stored in a battery to an external
device.
In accordance with another aspect of the disclosure, an electronic
device and a method are provided. The electronic device and the
method include a designated electric power to an external device
using electric power supplied from a charging device in the case
where the charging device is connected thereto and charging a
battery with the remaining electric power, thereby simultaneously
charging two electronic devices using a single charging device.
In accordance with another aspect of the disclosure, an electronic
device and a method are provided. The electronic device and the
method include a method for alternately performing a wired charging
operation of charging a battery in the electronic device and a
wireless charging operation of transmitting a designated wireless
power to an external device.
In accordance with another aspect of the disclosure, an electronic
device and a method are provided. The electronic device and the
method include a wired charging operation of charging a battery by
receiving a designated electric power from a wired charging device
and a wireless power transmission operation of supplying (or
sharing) a designated electric power to (or with) an external
device using electric power stored in the battery of the electronic
device in the case where the wired charging device is connected to
the electronic device.
Other aspects, advantages, and salient features of the disclosure
will become apparent to those skilled in the art from the following
detailed description, which, taken in conjunction with the annexed
drawings, discloses various embodiments of the disclosure
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other aspects, features, and advantages of certain
embodiments of the disclosure will be more apparent from the
following description taken in conjunction with the accompanying
drawings, in which:
FIG. 1 is a block diagram of an electronic device in a network
environment according to an embodiment of the disclosure;
FIG. 2 is a block diagram of a power management module and a
battery according to an embodiment of the disclosure;
FIG. 3 is a basic conceptual diagram for wirelessly sharing
electric power between a first electronic device and a second
electronic device according to an embodiment of the disclosure;
FIG. 4 is a cross-sectional view schematically illustrating an
electronic device according to an embodiment of the disclosure;
FIG. 5 is a conceptual diagram for explaining the concept of a
charging circuit in an electronic device according to various
embodiments of the disclosure;
FIG. 6A illustrates an example of a user scenario of wirelessly
charging a wearable device using a wireless charging function of an
electronic device according to an embodiment of the disclosure;
FIG. 6B illustrates an example of a user scenario of wirelessly
charging a wearable device using a wireless charging function of an
electronic device according to an embodiment of the disclosure;
FIG. 7A illustrates an example of a user scenario of wirelessly
charging an external electronic device using a wireless charging
function of an electronic device according to an embodiment of the
disclosure;
FIG. 7B illustrates an example of a user scenario of wirelessly
charging an external electronic device using a wireless charging
function of an electronic device according to an embodiment of the
disclosure;
FIG. 8 is a flowchart illustrating the operation of an electronic
device according to an embodiment of the disclosure;
FIG. 9 illustrates an example of a user interface indicating that
the battery is preferentially charged according to an embodiment of
the disclosure;
FIG. 10 illustrates an example of a user interface for notifying of
deactivation of a wireless power Tx mode, based on full charging of
an external device according to an embodiment of the
disclosure;
FIG. 11 is a flowchart illustrating the operation of an electronic
device according to an embodiment of the disclosure;
FIG. 12 is a flowchart illustrating an operation of adjusting
charging power by an electronic device, based on temperature
information, according to an embodiment of the disclosure;
FIG. 13 is a flowchart illustrating a method of operating an
electronic device according to an embodiment of the disclosure;
FIG. 14 is a flowchart illustrating a method of operating an
electronic device according to an embodiment of the disclosure;
FIG. 15 is a diagram illustrating an example of an operation
scenario of performing wireless charging and wired charging in an
electronic device according to an embodiment of the disclosure;
FIG. 16A illustrates an example of a charging operation graph in
wired charging and wireless charging according to an embodiment of
the disclosure;
FIG. 16B illustrates an example of a charging operation graph in
wired charging and wireless charging according to an embodiment of
the disclosure;
FIG. 17 is a flowchart illustrating a method of operating an
electronic device according to an embodiment of the disclosure;
FIG. 18 is a flowchart illustrating a method of operating an
electronic device according to an embodiment of the disclosure;
FIG. 19 is a flowchart illustrating a method of operating an
electronic device according to an embodiment of the disclosure;
and
FIG. 20 is a diagram for explaining an example of adaptively
configuring a reference level, based on a remaining battery
capacity in an electronic device according to an embodiment of the
disclosure.
Throughout the drawings, it should be noted that like reference
numbers are used to depict the same or similar elements, features,
and structures.
DETAILED DESCRIPTION
The following description with reference to the accompanying
drawings is provided to assist in a comprehensive understanding of
various embodiments of the disclosure as defined by the claims and
their equivalents. It includes various specific details to assist
in that understanding but these are to be regarded as merely
exemplary. Accordingly, those of ordinary skill in the art will
recognize that various changes and modifications of the various
embodiments described herein can be made without departing from the
scope and spirit of the disclosure. In addition, descriptions of
well-known functions and constructions may be omitted for clarity
and conciseness.
The terms and words used in the following description and claims
are not limited to the bibliographical meanings, but, are merely
used by the inventor to enable a clear and consistent understanding
of the disclosure. Accordingly, it should be apparent to those
skilled in the art that the following description of various
embodiments of the disclosure is provided for illustration purpose
only and not for the purpose of limiting the disclosure as defined
by the appended claims and their equivalents.
It is to be understood that the singular forms "a," "an," and "the"
include plural referents unless the context clearly dictates
otherwise. Thus, for example, reference to "a component surface"
includes reference to one or more of such surfaces.
FIG. 1 is a block diagram illustrating an electronic device 101 in
a network environment 100 according to an embodiment of the
disclosure.
Referring to FIG. 1, the electronic device 101 in the network
environment 100 may communicate with an electronic device 102 via a
first network 198 (e.g., a short-range wireless communication
network), or an electronic device 104 or a server 108 via a second
network 199 (e.g., a long-range wireless communication network).
According to an embodiment, the electronic device 101 may
communicate with the electronic device 104 via the server 108.
According to an embodiment, the electronic device 101 may include a
processor 120, memory 130, an input device 150, a sound output
device 155, a display device 160, an audio module 170, a sensor
module 176, an interface 177, a haptic module 179, a camera module
180, a power management module 188, a battery 189, a communication
module 190, a subscriber identification module (SIM) 196, or an
antenna module 197. In some embodiments, at least one (e.g., the
display device 160 or the camera module 180) of the components may
be omitted from the electronic device 101, or one or more other
components may be added in the electronic device 101. In some
embodiments, some of the components may be implemented as single
integrated circuitry. For example, the sensor module 176 (e.g., a
fingerprint sensor, an iris sensor, or an illuminance sensor) may
be implemented as embedded in the display device 160 (e.g., a
display).
The processor 120 may execute, for example, software (e.g., a
program 140) to control at least one other component (e.g., a
hardware or software component) of the electronic device 101
coupled with the processor 120, and may perform various data
processing or computation. According to one embodiment, as at least
part of the data processing or computation, the processor 120 may
load a command or data received from another component (e.g., the
sensor module 176 or the communication module 190) in volatile
memory 132, process the command or the data stored in the volatile
memory 132, and store resulting data in non-volatile memory 134.
According to an embodiment, the processor 120 may include a main
processor 121 (e.g., a central processing unit (CPU) or an
application processor (AP)), and an auxiliary processor 123 (e.g.,
a graphics processing unit (GPU), an image signal processor (ISP),
a sensor hub processor, or a communication processor (CP)) that is
operable independently from, or in conjunction with, the main
processor 121. Additionally or alternatively, the auxiliary
processor 123 may be adapted to consume less power than the main
processor 121, or to be specific to a specified function. The
auxiliary processor 123 may be implemented as separate from, or as
part of the main processor 121.
The auxiliary processor 123 may control at least some of functions
or states related to at least one component (e.g., the display
device 160, the sensor module 176, or the communication module 190)
among the components of the electronic device 101, instead of the
main processor 121 while the main processor 121 is in an inactive
(e.g., sleep) state, or together with the main processor 121 while
the main processor 121 is in an active state (e.g., executing an
application). According to an embodiment, the auxiliary processor
123 (e.g., an image signal processor or a communication processor)
may be implemented as part of another component (e.g., the camera
module 180 or the communication module 190) functionally related to
the auxiliary processor 123.
The memory 130 may store various data used by at least one
component (e.g., the processor 120 or the sensor module 176) of the
electronic device 101. The various data may include, for example,
software (e.g., the program 140) and input data or output data for
a command related thererto. The memory 130 may include the volatile
memory 132 or the non-volatile memory 134.
The program 140 may be stored in the memory 130 as software, and
may include, for example, an operating system (OS) 142, middleware
144, or an application 146.
The input device 150 may receive a command or data to be used by
another component (e.g., the processor 120) of the electronic
device 101, from the outside (e.g., a user) of the electronic
device 101. The input device 150 may include, for example, a
microphone, a mouse, a keyboard, or a digital pen (e.g., a stylus
pen).
The sound output device 155 may output sound signals to the outside
of the electronic device 101. The sound output device 155 may
include, for example, a speaker or a receiver. The speaker may be
used for general purposes, such as playing multimedia or playing
record, and the receiver may be used for an incoming call.
According to an embodiment, the receiver may be implemented as
separate from, or as part of the speaker.
The display device 160 may visually provide information to the
outside (e.g., a user) of the electronic device 101. The display
device 160 may include, for example, a display, a hologram device,
or a projector and control circuitry to control a corresponding one
of the display, hologram device, or projector. According to an
embodiment, the display device 160 may include touch circuitry
adapted to detect a touch, or sensor circuitry (e.g., a pressure
sensor) adapted to measure the intensity of force incurred by the
touch.
The audio module 170 may convert a sound into an electrical signal
and vice versa. According to an embodiment, the audio module 170
may obtain the sound via the input device 150, or output the sound
via the sound output device 155 or a headphone of an external
electronic device (e.g., an electronic device 102) directly (e.g.,
wiredly) or wirelessly coupled with the electronic device 101.
The sensor module 176 may detect an operational state (e.g., power
or temperature) of the electronic device 101 or an environmental
state (e.g., a state of a user) external to the electronic device
101, and then generate an electrical signal or data value
corresponding to the detected state. According to an embodiment,
the sensor module 176 may include, for example, a gesture sensor, a
gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an
acceleration sensor, a grip sensor, a proximity sensor, a color
sensor, an infrared (IR) sensor, a biometric sensor, a temperature
sensor, a humidity sensor, or an illuminance sensor.
The interface 177 may support one or more specified protocols to be
used for the electronic device 101 to be coupled with the external
electronic device (e.g., the electronic device 102) directly (e.g.,
wiredly) or wirelessly. According to an embodiment, the interface
177 may include, for example, a high definition multimedia
interface (HDMI), a universal serial bus (USB) interface, a secure
digital (SD) card interface, or an audio interface.
A connection terminal 178 may include a connector via which the
electronic device 101 may be physically connected with the external
electronic device (e.g., the electronic device 102). According to
an embodiment, the connection terminal 178 may include, for
example, a HDMI connector, a USB connector, a SD card connector, or
an audio connector (e.g., a headphone connector).
The haptic module 179 may convert an electrical signal into a
mechanical stimulus (e.g., a vibration or a movement) or electrical
stimulus which may be recognized by a user via his tactile
sensation or kinesthetic sensation. According to an embodiment, the
haptic module 179 may include, for example, a motor, a
piezoelectric element, or an electric stimulator.
The camera module 180 may capture a still image or moving images.
According to an embodiment, the camera module 180 may include one
or more lenses, image sensors, image signal processors, or
flashes.
The power management module 188 may manage power supplied to the
electronic device 101. According to one embodiment, the power
management module 188 may be implemented as at least part of, for
example, a power management integrated circuit (PMIC).
The battery 189 may supply power to at least one component of the
electronic device 101. According to an embodiment, the battery 189
may include, for example, a primary cell which is not rechargeable,
a secondary cell which is rechargeable, or a fuel cell.
The communication module 190 may support establishing a direct
(e.g., wired) communication channel or a wireless communication
channel between the electronic device 101 and the external
electronic device (e.g., the electronic device 102, the electronic
device 104, or the server 108) and performing communication via the
established communication channel. The communication module 190 may
include one or more communication processors that are operable
independently from the processor 120 (e.g., the application
processor (AP)) and supports a direct (e.g., wired) communication
or a wireless communication. According to an embodiment, the
communication module 190 may include a wireless communication
module 192 (e.g., a cellular communication module, a short-range
wireless communication module, or a global navigation satellite
system (GNSS) communication module) or a wired communication module
194 (e.g., a local area network (LAN) communication module or a
power line communication (PLC) module). A corresponding one of
these communication modules may communicate with the external
electronic device via the first network 198 (e.g., a short-range
communication network, such as Bluetooth.TM., wireless-fidelity
(Wi-Fi) direct, or infrared data association (IrDA)) or the second
network 199 (e.g., a long-range communication network, such as a
cellular network, the Internet, or a computer network (e.g., LAN or
wide area network (WAN)). These various types of communication
modules may be implemented as a single component (e.g., a single
chip), or may be implemented as multi components (e.g., multi
chips) separate from each other. The wireless communication module
192 may identify and authenticate the electronic device 101 in a
communication network, such as the first network 198 or the second
network 199, using subscriber information (e.g., international
mobile subscriber identity (IMSI)) stored in the subscriber
identification module 196.
The antenna module 197 may transmit or receive a signal or power to
or from the outside (e.g., the external electronic device) of the
electronic device 101. According to an embodiment, the antenna
module 197 may include an antenna including a radiating element
composed of a conductive material or a conductive pattern formed in
or on a substrate (e.g., PCB). According to an embodiment, the
antenna module 197 may include a plurality of antennas. In such a
case, at least one antenna appropriate for a communication scheme
used in the communication network, such as the first network 198 or
the second network 199, may be selected, for example, by the
communication module 190 (e.g., the wireless communication module
192) from the plurality of antennas. The signal or the power may
then be transmitted or received between the communication module
190 and the external electronic device via the selected at least
one antenna. According to an embodiment, another component (e.g., a
radio frequency integrated circuit (RFIC)) other than the radiating
element may be additionally formed as part of the antenna module
197.
At least some of the above-described components may be coupled
mutually and communicate signals (e.g., commands or data)
therebetween via an inter-peripheral communication scheme (e.g., a
bus, general purpose input and output (GPIO), serial peripheral
interface (SPI), or mobile industry processor interface
(MIPI)).
According to an embodiment, commands or data may be transmitted or
received between the electronic device 101 and the external
electronic device 104 via the server 108 coupled with the second
network 199. Each of the electronic devices 102 and 104 may be a
device of a same type as, or a different type, from the electronic
device 101. According to an embodiment, all or some of operations
to be executed at the electronic device 101 may be executed at one
or more of the external electronic devices 102, 104, or 108. For
example, if the electronic device 101 should perform a function or
a service automatically, or in response to a request from a user or
another device, the electronic device 101, instead of, or in
addition to, executing the function or the service, may request the
one or more external electronic devices to perform at least part of
the function or the service. The one or more external electronic
devices receiving the request may perform the at least part of the
function or the service requested, or an additional function or an
additional service related to the request, and transfer an outcome
of the performing to the electronic device 101. The electronic
device 101 may provide the outcome, with or without further
processing of the outcome, as at least part of a reply to the
request. To that end, a cloud computing, distributed computing, or
client-server computing technology may be used, for example.
FIG. 2 is a block diagram 200 illustrating the power management
module 188 and the battery 189 according to an embodiment of the
disclosure.
Referring to FIG. 2, the power management module 188 may include
charging circuitry 210, a power adjuster 220, or a power gauge 230.
The charging circuitry 210 may charge the battery 189 by using
power supplied from an external power source outside the electronic
device 101. According to an embodiment, the charging circuitry 210
may select a charging scheme (e.g., normal charging or quick
charging) based at least in part on a type of the external power
source (e.g., a power outlet, a USB, or wireless charging),
magnitude of power suppliable from the external power source (e.g.,
about 20 Watt or more), or an attribute of the battery 189, and may
charge the battery 189 using the selected charging scheme. The
external power source may be connected with the electronic device
101, for example, directly via the connection terminal 178 or
wirelessly via the antenna module 197.
The power adjuster 220 may generate a plurality of powers having
different voltage levels or different current levels by adjusting a
voltage level or a current level of the power supplied from the
external power source or the battery 189. The power adjuster 220
may adjust the voltage level or the current level of the power
supplied from the external power source or the battery 189 into a
different voltage level or current level appropriate for each of
some of the components included in the electronic device 101.
According to an embodiment, the power adjuster 220 may be
implemented in the form of a low drop out (LDO) regulator or a
switching regulator. The power gauge 230 may measure use state
information about the battery 189 (e.g., a capacity, a number of
times of charging or discharging, a voltage, or a temperature of
the battery 189).
The expression "remaining battery capacity", which is used in this
document, may refer to the remaining capacity of a battery. The
expression "remaining battery capacity" used in this document may
be interpreted as "remaining capacity of a battery", "battery
level", "state of charge (SOC)", or the like. For example, the
expression "remaining battery capacity" used in this document may
be replaced with "remaining capacity of a battery", "battery
level", "state of charge (SOC)", or the like.
The power management module 188 may determine, using, for example,
the charging circuitry 210, the power adjuster 220, or the power
gauge 230, charging state information (e.g., lifetime, over
voltage, low voltage, over current, over charge, over discharge,
overheat, short, or swelling) related to the charging of the
battery 189 based at least in part on the measured use state
information about the battery 189. The power management module 188
may determine whether the state of the battery 189 is normal or
abnormal based at least in part on the determined charging state
information. If the state of the battery 189 is determined to
abnormal, the power management module 188 may adjust the charging
of the battery 189 (e.g., reduce the charging current or voltage,
or stop the charging). According to an embodiment, at least some of
the functions of the power management module 188 may be performed
by an external control device (e.g., the processor 120).
The battery 189, according to an embodiment, may include a
protection circuit module (PCM) 240. The PCM 240 may perform one or
more of various functions (e.g., a pre-cutoff function) to prevent
a performance deterioration of, or a damage to, the battery 189.
The PCM 240, additionally or alternatively, may be configured as at
least part of a battery management system (BMS) capable of
performing various functions including cell balancing, measurement
of battery capacity, count of a number of charging or discharging,
measurement of temperature, or measurement of voltage.
According to an embodiment, at least part of the charging state
information or use state information regarding the battery 189 may
be measured using a corresponding sensor (e.g., a temperature
sensor) of the sensor module 176, the power gauge 230, or the power
management module 188. According to an embodiment, the
corresponding sensor (e.g., a temperature sensor) of the sensor
module 176 may be included as part of the PCM 240, or may be
disposed near the battery 189 as a separate device.
Various embodiments of the disclosure may relate to a method of
sharing (transmitting) electric power between an electronic device
and an electronic device using a wireless power transmission
technology. According to various embodiments, an electronic device
may adjust transmission power by controlling a charging circuit,
based on the amount of charging power of an external electronic
device receiving wireless power. According to various embodiments,
the electronic device may transmit electric power to an external
electronic device (e.g., a smart phone) that uses a relatively high
power during the wireless charging, or may transmit electric power
to an external electronic device (e.g., a wearable device) that
uses a relatively low power during the wireless charging, and may
adjust transmission power, based on the type of the external
electronic device.
Various embodiments of the disclosure relate to an electronic
device and a method for sharing (or transmitting) electric power
stored in a battery 189 of an electronic device 101 with (or to)
another electronic device (hereinafter, referred to as an "external
electronic device") (e.g., wireless power transmission or wireless
power sharing) using wireless power transmission technology.
According to various embodiments, in the case of sharing wireless
power between the electronic device 101 and an external electronic
device (e.g., another electronic device or a wearable device), a
wired charging device {a wired power supply device or an external
power source (e.g., a travel adapter (TA))} may also be connected
to the electronic device 101, which supplies electric power, by the
user. According to an embodiment, in the case where a wired
charging device is connected to the electronic device 101, the
electronic device 101 may alternately perform a wired charging
operation of charging the battery 189 in the electronic device 101
and a wireless charging operation of wirelessly supplying (or
sharing) electric power to (or with) an external electronic device
(e.g., a designated wireless power transmission operation), thereby
eliminating instability due to bypass or power loss through voltage
regulation.
For example, in the case where the electronic device 101 regulates
a voltage input from a wired charging device to the voltage used
for wireless power sharing between the electronic device 101 and an
external device and outputs the same, power loss may occur.
Accordingly, the electronic device 101 may be designed so as to
bypass the voltage of the wired charging device to the charging
circuit 210 {e.g., a power management integrated circuit (PMIC)} in
order to avoid power loss, and a circuit therefor, such as a
regulator, may be added thereto. According to an embodiment, most
of the PMICs supporting wired and wireless charging, which are
mounted to the electronic device 101, are designed to bypass a
voltage input through a wired path because of power efficiency in
the case of using both wired charging and wireless charging so that
a wired voltage is transmitted, regardless of a voltage configured
in the wireless path. For example, in the case of bypassing the
voltage of the wired charging device as the voltage output for
wireless power sharing between the electronic device 101 and an
external device, since the wired charging device uses various
voltages such as 5V, 9V, or 12V, it may be difficult to reliably
share wireless power and to configure and tune additional circuits
to maximize the efficiency of wireless power sharing. Various
embodiments may relate to a device and a method capable of stably
sharing electric power with an external device while minimizing
power loss when wired charging is provided from the wired charging
device connected to the electronic device 101 transmitting electric
power in the case of attempting to share wireless power between the
electronic device 101 and the external device.
FIG. 3 is a basic conceptual diagram for wirelessly sharing
electric power between a first electronic device and a second
electronic device according to an embodiment of the disclosure.
Referring to FIG. 3 that both a first electronic device 301 (e.g.,
the electronic device 101 in FIG. 1) and a second electronic device
302 (e.g., the electronic device 102 in FIG. 1) are capable of
transmitting/receiving wireless power, one of them may be an
electronic device capable of only receiving wireless power. In this
document, a description will be made based on the first electronic
device 301, and the second electronic device 302 will be described
as an external electronic device. In addition, the second
electronic device 302 may have the same configuration as the first
electronic device 301, or may have a configuration obtained by
excluding only a wireless power transmission function from the
first electronic device 301.
According to an embodiment, the first electronic device 301 may
include a coil 350, a wireless charger IC 340, a power management
IC (PMIC) 320, a battery 330 (e.g., the battery 189 in FIG. 1), an
external power source 303 (e.g., a USB), and/or a controller 310
(e.g., the processor 120 in FIG. 1).
According to an embodiment, the coil 350 may be configured as a
spiral form on an FPCB.
According to an embodiment, the wireless charger IC 340 may include
a full-bridge circuit. For example, the wireless charger IC 340 may
perform control such that the full-bridge circuit operates as an
inverter (DC.fwdarw.AC) in a wireless power transmission operation
and operates as a rectifier (AC.fwdarw.DC) in a wireless power
reception operation.
According to an embodiment, the wireless charger IC 340 may
exchange information used for wireless power transmission with the
second electronic device 302 through in-band communication
according to the WPC standards (or non-standards). For example,
in-band communication may allow the first electronic device 301 and
the second electronic device 302 to exchange data with each other
through frequency modulation or amplitude modulation of a wireless
power transmission signal in the wireless power transmission
between the coil 350 and the coil 350. According to various
embodiments, the communication between the first electronic device
301 and the second electronic device 302 may be performed using
out-band communication. For example, the out-band communication is
different from wireless power signals, and may be short-range
communication such as near-field communication (NFC), Bluetooth, or
Wi-Fi.
According to an embodiment, the PMIC 320 may include a charger
function of charging the battery 330 by means of wired and wireless
input power, a function of communication with an external electric
power source (e.g., a travel adapter) connected to a USB terminal
{e.g., USB battery charging specifications, USB power delivery (PD)
communication, AFC communication, and/or quick charge (QC)
communication}, a function of supplying electric power to a system
and supplying electric power corresponding to a voltage level used
for each device, and/or a function of supplying electric power to
the wireless charger IC 340 in a wireless power transmission
mode.
According to an embodiment, external power sources 303 and 304 may
conform to USB standards. For example, the external connection
terminals 303 and 304 may be interfaces for USB charging and/or
on-the-go (OTG) power supply. According to an embodiment, the
external connection terminals 303 and 304 may be connected to
external power sources (a TA, a battery pack, or the like).
According to an embodiment, the controller 310 may control overall
functions of wired and wireless charging of the first electronic
device, USB communication with the second electronic device 302,
and/or communication with the second electronic device 302 (e.g.,
USB PD, BC1.2, AFC, and/or QC) according to the state of the first
electronic device 301. For example, BC1.2, PD or the like may be an
interface for communication with an external power source (TA), and
the controller 310 may control communication with the external
power source. For example, the state of the first electronic device
301 may include the temperature of the first electronic device 301
and/or the remaining capacity of the battery 330 of the first
electronic device 301.
According to various embodiments, the first electronic device 301
may operate in a wireless power transmission (Tx) mode using the
battery 330. Alternatively, if a wired charging device is connected
to the first electronic device 301, the first electronic device 301
may preferentially use external electric power in the Tx mode, and
may charge the battery 330 with the remaining electric power.
In this document, the operation in which the electronic device
(e.g., the first electronic device 301 in FIG. 3) operates in a
wireless power Tx mode may denote the state in which the electronic
device transmits wireless power to an external electronic device
(e.g., the second electronic device in FIG. 3) using the coil 350.
Alternatively, in this document, the operation in which the first
electronic device 301 operates in a wireless power reception (Rx)
mode may denote the state in which the first electronic device 301
receives wireless power from an external electronic device (e.g.,
the second electronic device 302 in FIG. 3) through the coil 350
and charges the battery 330 using the received wireless power.
FIG. 4 is a cross-sectional view schematically illustrating an
electronic device according to an embodiment of the disclosure.
Referring to FIG. 4, an electronic device 400 (e.g., the electronic
device 101 in FIG. 1) may include a housing 405 for receiving and
fixing one or more components or a cover 409 that is coupled to the
housing 405 on the back surface of the electronic device 400. For
example, the components may include a display panel 411, a
substrate 401, a battery 407 (e.g., the battery 189 in FIG. 1), a
camera 403, or an FPCB 415, which are provided inside the housing
405.
According to an embodiment, the display panel 411 may be located on
the front surface of the electronic device, and may have a glass
(window cover) 410 attached to the top surface thereof. According
to an embodiment, the display panel 411 may be configured
integrally with a touch sensor or a pressure sensor. According to
another embodiment, the touch sensor or the pressure sensor may be
separate from the display panel 411. For example, the touch sensor
may be interposed between the glass 410 and the display panel
411.
According to an embodiment, the substrate 401 may have components,
such as a communication module (e.g., the communication module 190
in FIG. 1) or a processor (e.g., the processor 120 in FIG. 1),
which are mounted thereon. According to an embodiment, the
substrate 401 may be implemented using at least one of a printed
circuit board (PCB) or a flexible printed circuit board (FPCB).
According to an embodiment, the substrate 401 may operate as a
ground plate capable of grounding the loop antenna 417.
According to an embodiment, the cover 409 may be divided into a
conductive area made of a conductive material and a nonconductive
area made of a nonconductive material. For example, the cover 409
may be divided into a conductive area and a nonconductive area
located at one side or both sides of the conductive area. According
to an embodiment, the cover 409 may have one or more openings 421
through which some components of the electronic device 400 are
exposed to the outside. For example, the cover 409 may have one or
more openings 421 through which a camera 403, a flash, or a sensor
(e.g., a fingerprint sensor) is exposed.
According to an embodiment, the FPCB 415 may be attached to the
lower surface of the cover 409. According to an embodiment, the
FPCB 415 may have one or more loop antennas 417 mounted thereto,
and may be positioned to be electrically insulated from the
conductive area of the cover 409.
According to an embodiment, one or more loop antennas 417 may be
configured in the same type with each other. For example, one or
more loop antennas 417 may be configured in the form of a planar
coil. According to another embodiment, some of the one or more loop
antennas 417 may be configured in the form of a planar coil, and
others thereof may be configured in the form of a solenoid
coil.
According to an embodiment, one or more loop antennas 417 may
include a wireless charging coil, and the wireless charging coil
may be configured in a spiral pattern.
According to an embodiment, magnetic-field shielding layers (e.g.,
a shielding sheet 422 and a graphite sheet 423) may be provided to
one side of one or more loop antennas 417. For example, the
magnetic-field shielding layers 422 and 423 may concentrate the
magnetic field generated from the coil in the rear direction of the
electronic device 400 (e.g., a "Z" direction in FIG. 4), and may
suppress generation of the magnetic field inside the electronic
device 400, thereby preventing abnormal operation of other
electronic components.
FIG. 5 is a conceptual diagram illustrating the concept of a
charging circuit in an electronic device according to an embodiment
of the disclosure.
Referring to FIG. 5, an electronic device 501 (e.g., the electronic
device 101 in FIG. 1) according to various embodiments may include
a battery 510 (e.g., the battery 189 in FIG. 1), a wired interface
521, a wireless interface 525, and/or a charging circuit 530.
According to an embodiment, the battery 510 may be mounted inside a
housing (e.g., the housing 405 in FIG. 4) of the electronic device
501, and may be charged. The battery 510 may include, for example,
a lithium-ion battery, a rechargeable battery, and/or a solar
battery.
According to an embodiment, the wired interface 521 and the
wireless interface 525 may be mounted to a part of a housing of the
electronic device 501, and may be connected to external devices,
respectively. The wired interface 521 may include, for example, a
universal serial bus (USB) connector 521-1, may be wiredly
connected to the first external device 502 via the connector 521-1,
and may be intended for USB charging and/or on-the-go (OTG) power
supply, or an external power source (such as a TA, a battery pack,
or the like) may be connected thereto. The wireless interface 525
may include a coil 525-1 (also referred to as a "conductive
pattern") (e.g., one or more loop antennas 417 in FIG. 4) and a
transmit/receive integrated chip (TRX IC) 525-2, and may wirelessly
transmit and receive electric power to and from the second external
device 503 through the coil 525-1 and the TRX IC 525-2. Electric
power may be wirelessly transmitted and received using a
magnetic-field inductive coupling method, a resonance coupling
method, or a combination thereof. According to an embodiment, the
coil 525-1 may include a first conductive pattern for wirelessly
transmitting electric power and a second conductive pattern for
wirelessly receiving electric power.
According to an embodiment, the first external device 502, which is
an external device that can connected by wire, may be a wired
charging device or a wired power receiving device. The wired power
receiving device may be an on-the-go (OTG) device. The OTG device
may be a device connected to the electronic device 501 and supplied
with power, such as a mouse, a keyboard, a USB memory, and an
accessory. The electronic device 501 may operate in an OTG mode so
as to supply external electric power to a USB terminal. The wired
charging device may be connected by wire, such as a travel adapter
(TA), thereby supplying electric power to the electronic device
501. The wired power receiving device may be connected by wire to
receive electric power from the electronic device 501, thereby
using the same as internal power, and may charge another battery
provided in the wired power receiving device. According to an
embodiment, the first external device connected to the electronic
device 501 through the wired interface 521 may include a wired
high-voltage (HV) device {e.g., a device supporting adaptive fast
charge (AFC) or quick charge (QC)}. If the wired HV device is
connected to the connector, electric power having a voltage (e.g.,
9 v) higher than the voltage (e.g., 5 v) supplied from the battery
510 may be supplied to the wired HV device or received
therefrom.
According to an embodiment, the second external device 503 may
include a wireless power supply device or a wireless power
receiving device. According to various embodiments, the wireless
power supply device may supply wireless power to the electronic
device 501 using a first conductive pattern such as a wireless
charging pad. The wireless power receiving device may receive
wireless power supplied from the electronic device 501 using a
second conductive pattern, and may charge another battery included
in the wireless power receiving device using the received electric
power. According to an embodiment, the second external device 503
connected to the electronic device 501 through the wireless
interface 525 may include a wireless high-voltage (HV) device
{e.g., a device supporting adaptive fast charge (AFC) or quick
charge (QC)}. According to an embodiment, the wireless HV device
may include a wireless charging pad that supports fast charging.
The wireless charging pad may communicate with the TRX IC 525-2
through in-band communication, thereby determining whether or not
to perform fast charging, or may determine whether or not to
perform fast charging using a separate communication module (e.g.,
Bluetooth or Zigbee). For example, the electronic device 501 may
make a request to the wireless charging pad for high voltage (HV)
charging of, for example, 9V through the TRX IC 525-2, and the
wireless charging pad may identify whether or not fast charging is
possible through communication with the electronic device 501
according to a request for HV charging from the electronic device
501. If it is identified that fast charging is possible, the
wireless charging pad may supply an electric power of 9V to the
electronic device 501.
According to an embodiment, the charging circuit 530 may be
electrically connected to the battery 510, and may be configured so
as to connect the wired interface 521 and the wireless interface
525, the battery 510 and the wired interface 521, and the battery
510 and the wireless interface 525, respectively. The charging
circuit 530 may be configured to electrically connect the battery
510 and the conductive pattern (e.g., the first conductive
pattern), thereby wirelessly transmitting electric power to the
second external device 503 (e.g., the wireless power receiving
device), and may be configured to electrically connect the battery
510 and the connector while wirelessly transmitting electric power
to the outside, thereby wiredly transmitting electric power to the
first external device 502 (e.g., the wired power receiving device).
For example, the charging circuit 530 may convert a first power
generated by the battery 510 into a second power higher than the
first power, may transmit a third power, which is at least part of
the second power, to a wireless power receiving device through the
first conductive pattern, and may transmit a fourth power, which is
at least other part of the second power, to the OTG device or the
wired power receiving device through the connector.
According to an embodiment, the charging circuit 530 may include an
interface controller 529, a first switch 532, a second switch 534,
a control logic 536, a switch group 538, and/or a charging switch
539.
According to an embodiment, the interface controller 529 may
determine the type of the first external device 502 connected to
the wired interface 521, and may determine whether or not fast
charging is supported through adaptive fast charge (AFC)
communication with the first external device 502. According to an
embodiment, the interface controller 529 may include a micro USB
interface IC (MUIC) or a fast charging {e.g., adaptive fast charge
(AFC) or quick charge (QC)} interface. For example, the MUIC may
determine whether the first external device 502 connected to the
wired interface 521 is a wired charging device or a wired power
receiving device. For example, the fast charging interface may
determine whether or not fast charging is supported through
communication with the first external device 502. If fast charging
is supported, the first external device 502 may increase
transmission and reception power. For example, in the case where
the first external device 502 is a wired charging device that
typically transmits about 10 W (5V/2 A) power, if fast charging is
supported, it is possible to transmit about 15 W (9V/1.6V) {or
about 18 W (e.g., 9V/2 A)} power.
According to an embodiment, the first switch 532 may include one or
more switches, and may control electric power output to a device
(e.g., the OTG device) connected via the wired interface 521 or to
a wired power receiving device and electric power input from a
wired charging device. For example, the first switch 532 may be
turned on to output electric power to the OTG device or the wired
power receiving device and to receive electric power from the wired
charging device, or may be turned off to interrupt the power output
to the OTG device or the wired power receiving device and the power
input from the wired charging device.
According to an embodiment, the second switch 534 may include one
or more switches, and may control electric power input/output
from/to the wireless power supply device and the wireless power
receiving device through the wireless interface 525 such as the
coil 525-1 and the TRX IC 525-2. For example, the second switch 534
may be turned on to allow power input/output from/to the wireless
power supply device or the wireless power receiving device, or may
be turned off to interrupt power input/output from/to the wireless
power supply device or the wireless power receiving device.
According to an embodiment, the control logic 536 may be part of
controller 310, or may communicate with the controller 310.
According to an embodiment, the control logic 536 may perform
control so as to convert the electric power input from at least one
of the first switch 532 and the second switch 534 into a charging
voltage and a charging current suitable for charging the battery
510, may perform control so as to convert the electric power from
the battery 510 into a charging voltage and a charging current
suitable for charging another battery of an external device
connected to each of the first switch 532 and the second switch
534, and may perform control so as to convert the electric power
from the battery 510 into a voltage and a current suitable for use
in an external device.
According to various embodiments, the control logic 536 may perform
control such that the charging circuit 530 selectively transmits
electric power from the battery 510 to the outside wirelessly or
wiredly. In addition, the control logic 536 may perform control
such that electric power is transmitted to the first external
device 502 and/or the second external device 503 via the charging
circuit 530 or such that electric power is received from the first
external device 502 and/or the second external device 503.
According to various embodiments, if a wired charging device is
connected, the control logic 536 may perform control such that the
battery 510 is charged using electric power received from the wired
charging device. In addition, if an OTG device is connected, the
control logic 536 may perform control so as to perform an OTG
function. In addition, if a wireless power supply device is
connected, the control logic 536 may perform control such that the
battery 510 is charged by receiving electric power from the
wireless power supply device. In addition, if a wireless power
supply device and an OTG device are connected, the control logic
536 may perform control so as to execute an OTG function while
charging the battery 510 by receiving electric power from the
wireless power supply device. If a wireless power receiving device
is connected, the control logic 536 may perform control so as to
supply electric power to the wireless power receiving device using
electric power of the battery 510. In addition, if a wired charging
device and a wireless power receiving device are connected, the
control logic 536 may perform control so as to supply electric
power to the wireless power receiving device while charging the
battery 510 by receiving electric power from the wired charging
device. If an OTG device and a wireless power receiving device are
connected, the control logic 536 may perform control so as to
supply electric power to the wireless power receiving device using
electric power of the battery 510 while executing an OTG
function.
According to an embodiment, the switch group 538 may provide a
constant current to the system 520 (e.g., the system 520 for
supplying electric power to respective modules of the electronic
device), may boost (.uparw.) or buck (.dwnarw.) a voltage of the
battery 510 in order to provide a constant current to the external
devices 502 and 503, or may boost (.uparw.) or buck (.dwnarw.) a
supplied charging voltage in order to provide a constant charging
current to the battery 510. According to an embodiment, the switch
group 538 may include a buck/boost converter.
According to an embodiment, the charging switch 539 may detect the
amount of charging current, and may interrupt the charging of the
battery 510 in the case of overcharging or overheating.
According to an embodiment, the electronic device 501 may include a
display (e.g., the display device 160 in FIG. 1). The display
device 160 may display a user interface configured to control at
least a part of the charging circuit 530. The display device 160
may receive a user input for wirelessly or wiredly transmitting
electric power from the battery 510 to the external devices 502 and
503. The display device 160 may display one or more external
devices 502 and 503 connected to the electronic device 501, and may
display the remaining battery capacity of the connected external
devices 502 and 503, or may display whether electric power is being
supplied to the connected external device 502 or 503 or is being
received from the connected external device 502 or 503. If a
plurality of external devices 502 and 503 is connected and provided
with electric power, the display device 160 may display a screen
for adjusting distribution of electric power to be provided to the
respective external devices 502 and 503, and may display a screen
for selecting power supply priority with respect to the plurality
of external devices 502 and 503. In addition, the display device
160 may display a screen indicating information on the display
devices 160 of the connected external device 502 or 503. At least
some of the content displayed on the display device 160 may vary
according to signals received from the connected external devices
502 and 503.
FIG. 6A illustrates an example of a user scenario of wirelessly
charging a wearable device 602 using a wireless charging function
of an electronic device according to an embodiment of the
disclosure, and FIG. 6B illustrates an example of a user scenario
of wirelessly charging a wearable device 602 using a wireless
charging function of an electronic device according to an
embodiment of the disclosure. Although the wireless power receiving
device 602 is illustrated as a wearable device 602 (e.g., a smart
watch, wireless earphones, or a wireless headset) in the examples
shown in FIGS. 6A and 6B, the wireless power receiving device 602
may be any of various electronic devices that can be wirelessly
charged by receiving a relatively low electric power.
Referring to FIG. 6A, an electronic device 601 (e.g., the
electronic device 101 in FIG. 1) according to various embodiments
may activate a wireless power Tx mode, based on user input, and, if
the wireless power Tx mode is activated, may wirelessly supply
electric power to the wearable device 602 using electric power of
the battery (e.g., the battery 510 in FIG. 5). For example, the
user input may include a user's touch input through a display
(e.g., the display device 160 in FIG. 1), manipulation of physical
buttons provided on the outer side of a housing (e.g., the housing
405 in FIG. 4), or an approach of an external device (e.g., the
wearable device 602 in FIG. 6A or 6B) to the electronic device
601.
Referring to FIG. 6B, the electronic device 601 according to
various embodiments, if a wired charging device 603 (e.g., a travel
adapter) is connected thereto, may charge the battery 510 while
supplying electric power to the wearable device 602 by receiving
electric power from the wired charging device 603.
Referring to FIG. 6B, the electronic device 601 according to
various embodiments, if a wired charging device 603 (or an external
power source) (e.g., a TA) is connected thereto, may charge the
battery 510 while (or in parallel with) supplying electric power to
the wearable device 602 by receiving electric power from the wired
charging device 603.
According to an embodiment, as shown in FIG. 6A, if a wireless
power Tx mode (e.g., a Tx mode) is activated in a stand-alone
state, the electronic device 601 may generate a designated electric
power (e.g., about 5V/3.75 W) using electric power of the battery
510, and may transmit the designated electric power through a coil
(e.g., the coil 525-1 in FIG. 5). For example, the stand-alone
state may denote the state in which the electronic device 601 is
not connected to the wired charging device 603.
According to an embodiment, as shown in FIG. 6B, if a wireless
power Tx mode is activated while the wired charging device 603 is
connected to the electronic device 601, or if the wired charging
device 603 is connected to the electronic device 601 while the
wireless power Tx mode is active in a stand-alone state, the
electronic device 601 may use part of the external electric power
received from the wired charging device 603 in wireless power
transmission, and may charge the battery 510 with the remaining
electric power. According to various embodiments, if a wireless
power Tx mode is activated while the wired charging device 603 is
connected to the electronic device 601, or if the wired charging
device 603 is connected to the electronic device 601 while the
wireless power Tx mode is active in a stand-alone state, the
electronic device 601 may use the external electric power in
wireless power transmission in a designated first period, and may
charge the battery 510 using the external electric power in a
designated second period. According to an embodiment, the first
period and the second period may switch to each other according to
a predetermined criterion. For example, the electronic device 601
may alternately perform the operation of using the external
electric power in wireless power transmission and the operation of
using the external electric power in charging the battery 510. This
will be described later with reference to the drawings.
According to various embodiments, if the wireless power Tx mode is
activated, the electronic device 601 may perform in-band
communication with the wireless power receiving device (or an
external device) according to designated standards {e.g., wireless
power consortium (WPC) standards}, and may exchange information
used for wireless power transmission with the wireless power
receiving device. For example, wireless charging in accordance with
the WPC standards may include a ping step, an identification and
configuration step, or a power transfer step. According to an
embodiment, it may be determined in the ping step whether or not a
wireless power receiving device (e.g., the wearable device 602 in
FIG. 6A or 6B) is placed on the electronic device 601, and, for
example, it may be determined whether or not the electronic device
601 is in proximity to the wireless power receiving device (e.g.,
the wearable device 602 in FIG. 6A or 6B). According to an
embodiment, the identification and configuration step may be
intended to configure the amount of power transmission through the
communication between the wireless power supply device (e.g., the
electronic device 601 in FIG. 6A or 6B) and the wireless power
receiving device (e.g., the wearable device 602 in FIG. 6A or 6B),
and, for example, may be the step in which the electronic device
601 determines a designated wireless power to be transmitted to the
wireless power receiving device. According to an embodiment, the
power transfer step may be intended to transmit the designated
wireless power, and, for example, may be the step in which the
electronic device 601 transmits the designated wireless power to
the wireless power receiving device (e.g., the wearable device 602
in FIG. 6A or 6B). According to an embodiment, the electronic
device 601 may perform the three steps above, thereby transmitting
the wireless power, if the wireless power Tx mode is activated, and
may not perform the three steps above if the wireless power Tx mode
is not activated. According to an embodiment, if the wireless power
Tx mode is activated, the electronic device 601 may display a
notification indicating that the wireless power Tx mode has been
activated through the display device 160, and if the wireless power
Tx mode is deactivated, the electronic device 601 may display a
notification indicating that the wireless power Tx mode has been
deactivated through the display device 160.
According to various embodiments, if the wireless power Tx mode is
activated while the wired charging device 603 is connected to the
electronic device 601, the electronic device 601 may identify a
wireless power receiving device (e.g., the wearable device 602 in
FIG. 6A or 6B) according to designated standards (e.g., WPC
standards), and may determine a designated electric power
corresponding to the identified wireless power receiving device.
For example, the electronic device 601 may identify that the
wireless power receiving device is a wearable device 602, and may
determine a designated electric power (e.g., about 5V/3.75 W)
corresponding to the wearable device 602.
According to an embodiment, if the connected wired charging device
603 supports fast charging (e.g., AFC, QC, or PD) (e.g., based on
about 9V/15 W), the electronic device 601 may charge the wearable
device 602 or the battery 510, based on a designated electric power
{e.g., fast charging power (e.g., about 9V/15 W)}. According to an
embodiment, if the connected wired charging device 603 is a device
that does not support fast charging, such as a 5V standard TA
(e.g., about 10 W power) or a USB device {e.g., a standard
downstream port (SDP) (e.g., about 5 W power), or a charging
downstream port (CDP) (e.g., about 7.5 W power)}, the electronic
device 601 may charge the wearable device 602 or the battery 510,
based on a designated electric power {e.g., normal charging power
(e.g., about 5V/3.75 W)}.
According to various embodiments, if the wired charging device 603
is connected, and if the wireless power Tx mode is active, the
electronic device 601 may perform a designated operation, based on
a designated event. According to an embodiment, the designated
event may include detachment of the wired charging device 603,
deactivation of the wireless power Tx mode, charging of the battery
510 to a designated level or more, or full charging of the wireless
power receiving device (e.g., the wearable device 602 in FIG. 6A or
6B).
According to an embodiment, if the wired charging device 603 is
detached in the state in which the wired charging device 603 is
connected and the wireless power Tx mode is activated, the
electronic device 601 may stop the operation of charging the
battery 510, and may maintain the operation of transmitting the
designated electric power to the wireless power receiving device
(e.g., the wearable device 602 in FIG. 6A or 6B) using electric
power of the battery 510.
According to an embodiment, if the wireless power Tx mode is
deactivated based on user input in the state in which the wired
charging device 603 is connected and the wireless power Tx mode is
active, the electronic device 601 may stop the operation of
transmitting the designated electric power to the wireless power
receiving device (e.g., the wearable device 602 in FIG. 6A or 6B).
For example, the electronic device 601 may charge the battery 510
using external electric power if the wired charging device 603 is
connected thereto.
According to an embodiment, if the battery 510 is charged to a
designated level or more in the state in which the wired charging
device 603 is connected and the wireless power Tx mode is active,
the electronic device 601 may stop the operation of charging of the
battery 510, and may perform an operation of transmitting a
designated electric power to the wireless power receiving device
(e.g., the wearable device 602 in FIG. 6A or 6B), regardless of a
designated period (e.g., the second period) for charging the
battery 510. For example, the electronic device 601 may use
external electric power in wireless power transmission without
switching (or swapping) between a first period for using external
electric power received from the wired charging device 603 in
wireless power transmission and a second period for using external
electric power in charging the battery 510. According to an
embodiment, if the remaining capacity of the battery 510 drops
below another designated level, the electronic device 601 may
resume switching between the first period and the second period,
thereby performing an operation of transmitting a designated
electric power to the wireless power receiving device in the first
period and performing an operation of charging the battery 510 in
the second period.
According to an embodiment, the electronic device 601 may operate
by changing the remaining battery capacity reference according to
the first period or the second period, based on the remaining
battery capacity of the battery 510. According to an embodiment, an
example in which the first period and the second period are
separated based on a remaining battery capacity of about 85% will
be described. For example, if the remaining battery capacity of the
wireless power receiving device (e.g., the wearable device 602 in
FIG. 6A or 6B) is about 85% or less, the electronic device 601
(e.g., a wireless power supply device) may operate, for example,
with a remaining battery capacity reference of about 1% for wired
charging and a remaining battery capacity reference of about 0.9%
for wireless power transmission (e.g., battery sharing) by
regarding a wireless power transmission function as more important.
As another example, if the remaining battery capacity of the
wireless power receiving device exceeds about 85%, the electronic
device 601 may operate, for example, with a remaining battery
capacity reference of about 3% for wired charging and a remaining
battery capacity reference of about 0.9% for wireless power
transmission (e.g., battery sharing) by regarding a wired charging
function of the electronic device 601 (e.g., a wireless power
supply device) as more important. According to an embodiment, after
the battery 510 is fully charged to 100%, the electronic device 601
(e.g., a wireless power supply device) may perform wireless power
transmission (e.g., battery sharing) to the wireless power
receiving device while maintaining the remaining battery capacity
to be about 100%.
According to an embodiment, if the wireless power receiving device
(e.g., the wearable device 602 in FIG. 6A or 6B) is fully charged
in the state in which the wired charging device 603 is connected
and the wireless power Tx mode is active, the electronic device 601
may stop transmitting the designated electric power to the wireless
power receiving device. For example, the electronic device 601 may
receive a designated signal indicating that the wireless power
receiving device has been fully charged from the wireless power
receiving device receiving wireless power, and may deactivate the
wireless power Tx mode in response to the designated signal. For
example, if the wired charging device 603 is connected, the
electronic device 601 may charge the battery 510 using external
electric power.
According to various embodiments, if the remaining capacity of the
battery 510 is equal to or less than a designated value, the
electronic device 601 may deactivate the wireless power Tx mode.
For example, if the remaining capacity of the battery 510 is less
than or equal to a designated value {for example, the state of
charge (SOC) is less than N % (e.g., 15%, 20%, or 30%)}, the
electronic device 601 may automatically deactivate the wireless
power Tx mode, or may deactivate a UI icon for activating the
wireless power Tx mode. For example, if the remaining capacity of
the battery 510 is less than or equal to a designated value, the
electronic device 601 may stop transmitting the designated electric
power to the wireless power receiving device (e.g., the wearable
device 602 in FIG. 6A or 6B). In this case, even if the user
touches the UI icon, the wireless power Tx mode may not be
activated, and the electronic device 601 may output, to the user, a
notification indicating that the wireless power Tx mode cannot be
activated due to a low battery 510. According to various
embodiments, the electronic device 601 may activate the wireless
power Tx mode in the case where the wired charging device 603 is
connected thereto even if the remaining capacity of the battery 510
is equal to or less than a designated value. According to an
embodiment, if the remaining capacity of the battery 510 is equal
to or less than a designated value, the electronic device 601 may
preferentially use external electric power of the wired charging
device 603 in charging the battery 510.
Table 1 may show examples in which the electronic device 601
receives a relatively low wireless power (e.g., 5V/3.75 W) (e.g., a
first charging power) and transmits wireless power to any of
various rechargeable electronic devices 601 (e.g., the wearable
device 602), as shown in FIGS. 6A and 6B.
TABLE-US-00001 TABLE 1 Wireless Connected power State of wired
Occurrence transmission Operation of electronic charging of of
electronic electronic device device event device device Wireless --
-- Performed Transmit power Tx wireless mode is power using
activated in battery power stand-alone state Wireless AFC --
Performed Use external power Tx QC -- Performed electric power mode
is PD -- Performed preferentially activated USB -- Performed in
wireless during power connection of transmission wired and charge
charging battery with device remaining Wired AFC -- Performed
electric power charging QC -- Performed (Switch from device is PD
-- Performed 9 V/15 W connected USB -- Performed charging to (SDP)
while wireless USB -- Performed 5 V/10 W power Tx (CDP) charging)
mode is active in stand-alone state Wired Any wired Detachment
Performed Transmit charging charging of wired wireless device is
device charging power using connected and device battery power
wireless Any wired Wireless Not Charge power Tx charging power Tx
performed battery using mode is active device mode is external
deactivated electric power Any wired External Not Charge charging
device is performed battery using device fully charged external
electric power
Case in which Wireless Power Tx Mode is Activated in Stand-Alone
State
Referring to Table 1, if a wireless power Tx mode is activated in a
stand-alone state, the electronic device 601 according to an
embodiment may generate a relatively low second designated electric
power (e.g., 5V/3.75 W) using electric power of the battery 510,
and may transmit the second designated electric power through a
coil (e.g., the coil 525-1 in FIG. 5). For example, the stand-alone
state may denote the state in which the electronic device 601 is
not connected to the wired charging device 603.
Case in which Wireless Power Tx Mode is Activated During Connection
of Wired Charging Device 603
Referring to Table 1, if a wireless power Tx mode is activated
while the wired charging device 603 is connected to the electronic
device 601, the electronic device 601 according to an embodiment
may preferentially use external electric power in wireless power
transmission, and may charge the battery 510 by the remaining
electric power.
According to various embodiments, if the wireless power Tx mode is
activated, the electronic device 601 may perform in-band
communication with an external device 602 according to designated
standards (e.g., WPC standards), and may exchange information used
for wireless power transmission with the external device 602. For
example, wireless charging in accordance with the WPC standards may
include a ping step, an identification and configuration step, or a
power transfer step. According to an embodiment, it may be
determined in the ping step whether or not a wireless power
receiving device (e.g., the wearable device 602 in FIG. 6A) is
placed on a wireless charging pad, and, for example, it may be
determined whether or not the electronic device 601 is in proximity
to the external device 602 (e.g., the wearable device 602 in FIG.
6A). According to an embodiment, the identification and
configuration step may be intended to configure the amount of power
transmission through the communication between the wireless power
transmitting device (e.g., the electronic device 601 in FIG. 6A)
and the wireless power receiving device (e.g., the wearable device
602 in FIG. 6A), and, for example, may be the step in which the
electronic device 601 determines a designated wireless power to be
transmitted to the external device 602. According to an embodiment,
the power transfer step may be intended to transmit the designated
wireless power, and, for example, may be the step in which the
electronic device 601 transmits the designated wireless power to
the external device 602. According to an embodiment, the electronic
device 601 may perform the three steps above, thereby transmitting
the wireless power, if the wireless power Tx mode is activated, and
may not perform the three steps above if the wireless power Tx mode
is not activated. According to an embodiment, if the Tx mode is
deactivated, the electronic device 601 may display a notification
indicating that the wireless power Tx mode has been deactivated
through the display device 160.
According to an embodiment, if the wireless power Tx mode is
activated while the wired charging device 603 is connected to the
electronic device 601, the electronic device 601 may identify an
external device 602 according to designated standards (e.g., WPC
standards), and may determine a designated electric power
corresponding to the identified external device 602. For example,
the electronic device 601 may identify that the external device 602
is a wearable device 602, and may determine a second designated
electric power (e.g., about 5V/3.75 W) corresponding to the
wearable device 602. According to an embodiment, the electronic
device 601 may wirelessly transmit the designated electric power
using external electric power provided from the wired charging
device 603, and may charge the battery 510 by the remaining
electric power, excluding the designated electric power. For
example, if the connected wired charging device 603 supports fast
charging (e.g., AFC, QC, or PD) (based on 9V/15 W), the electronic
device 601 may preferentially generate a second designated electric
power (e.g., 5V/3.75 W) using the external electric power, thereby
transmitting the generated second designated electric power (e.g.,
5V/3.75 W) to the wearable device 602, and may provide the
remaining electric power of 5V/6.25 W to the system or the battery
510. As another example, if the connected wired charging device 603
supports fast charging, the electronic device 601 may charge the
battery with fast charging electric power (e.g., 9V/15 W), and if
the Tx mode is activated, the electronic device 601 may switch the
charging electric power of the battery from the fast charging
electric power (e.g., 9V/15 W) to normal charging electric power
(e.g., 5V/10 W), may transmit part (e.g., 5V/3.75) of the switched
normal charging electric power (e.g., 5V/10 W), as wireless power,
to the wearable device 602, and may charge the battery using the
remaining electric power (e.g., 5V/6.25 W).
According to an embodiment, if the connected wired charging device
603 is a device that does not support fast charging, such as a 5V
standard travel adapter (TA) (e.g., 10 W power) or a USB device
{e.g., a standard downstream port (SDP) (e.g., 5 W power) or a
charging downstream port (CDP) (e.g., 7.5 W power)}, the electronic
device 601 may transmit a second designated electric power (e.g.,
5V/3.75 W) to the wearable device 602, and may provide the system
or charge the battery 510 with the remaining electric power.
Case in which Wired Charging Device 603 is Connected while Wireless
Power Tx Mode is Active in Stand-Alone State
Referring to Table 1, if the wired charging device 603 is connected
to the electronic device 601 while the wireless power Tx mode is
active in a stand-alone state, the electronic device 601 according
to an embodiment may maintain the operation of transmitting a
designated electric power to the external device 602, and may
further charge the battery 510. According to an embodiment, the
electronic device 601 may transmit a designated electric power, as
wireless power, using external electric power provided from the
wired charging device 603, and may charge the battery 510 by the
remaining electric power, excluding the designated electric power.
For example, if the connected wired charging device 603 supports
fast charging (e.g., AFC, QC, or PD) (based on 9V/15 W), the
electronic device 601 may preferentially generate a second
designated electric power (e.g., 5V/3.75 W) using the external
electric power, thereby transmitting the generated second
designated electric power to the wearable device 602, and may
provide the remaining electric power of 5V/6.25 W to the battery
510. As another example, if the connected wired charging device 603
supports fast charging, the electronic device 601 may charge the
battery with fast charging electric power (e.g., 9V/15 W), and if
the Tx mode is activated, the electronic device 601 may switch the
charging electric power of the battery from the fast charging
electric power (e.g., 9V/15 W) to normal charging electric power
(e.g., 5V/10 W), may transmit part (e.g., 5V/3.75) of the switched
normal charging power (e.g., 5V/10 W), as wireless power, to the
wearable device 602, and may charge the battery using the remaining
electric power (e.g., 5V/6.25 W).
According to an embodiment, if the connected wired charging device
603 is a device that does not support fast charging, such as a 5V
standard travel adapter (TA) (e.g., 10 W power) or a USB device
{e.g., a standard downstream port (SDP) (e.g., 5 W power) or a
charging downstream port (CDP) (e.g., 7.5 W power)}, the electronic
device 601 may transmit a second designated electric power (e.g.,
5V/3.75 W) to the wearable device 602, and may provide the system
or charge the battery 510 with the remaining electric power.
Case in which Wired Charging Device 603 is Connected and Wireless
Power Tx Mode is Active
Referring to Table 1, if the wired charging device 603 is connected
and the wireless power Tx mode is active, the electronic device 601
according to an embodiment may perform a designated operation,
based on a designated event. According to an embodiment, the
designated event may include detachment of the wired charging
device 603, deactivation of the wireless power Tx mode, and full
charging of the external device 602.
According to an embodiment, if the wired charging device 603 is
detached in the state in which the wired charging device 603 is
connected and the wireless power Tx mode is active, the electronic
device 601 may stop charging the battery 510, and may maintain the
operation of transmitting a designated electric power to the
external device 602 using electric power of the battery 510.
According to an embodiment, if the wireless power Tx mode is
deactivated based on user input in the state in which the wired
charging device 603 is connected, in which the wired charging
device 603 is connected to the external device 602, or in which the
wireless power Tx mode is active, the electronic device 601 may
stop the operation of transmitting a designated electric power to
the external device 602. For example, if the wired charging device
603 is connected, the electronic device 601 may charge the battery
510 using external electric power. As another example, if the
connected wired charging device 603 supports fast charging (e.g.,
AFC, QC, or PD) (based on 9V/15 W), the electronic device 601 may
switch the charging electric power for the battery 510 from 5V/10 W
to 9V/15 W.
According to an embodiment, if the external device 602 is fully
charged in the state in which the electronic device 601 is
connected to the wired charging device 603, in which the wired
charging device 603 is connected to the external device 602, or in
which the wireless power Tx mode is active, the electronic device
601 may stop the operation of transmitting a designated electric
power to the external device 602. For example, the electronic
device 601 may receive, from the external device 602 receiving the
wireless power, a designated signal indicating that the external
device 602 has been fully charged, and may deactivate the wireless
power Tx mode in response to the designated signal. For example, if
the wired charging device 603 is connected to the electronic device
601, the electronic device 601 may charge the battery 510 using
external electric power. As another example, if the connected wired
charging device 603 supports fast charging (e.g., AFC, QC, or PD)
(based on 9V/15 W), the electronic device 601 may switch the
charging electric power for the battery 510 from 5V/10 W to 9V/15
W.
As described in the above scenarios, the wearable device 602 has a
small battery 510 having a low charging power. For example, a smart
watch is able to be wirelessly charged only by a designated
wireless power of about 3.75 W. Accordingly, the electronic device
601 may wirelessly transmit a designated electric power, regardless
of whether or not the wired charging device 603 is connected and
whether or not the connected wired charging device 603 supports
fast charging (e.g., AFC, QC, or PD) (e.g., based on 9V/15 W).
However, if the wired charging device 603 is a fast charging
device, the electronic device 601 may perform an operation of
switching a fast charging mode to a normal charging mode. For
example, if the connected wired charging device 603 supports fast
charging, the electronic device 601 may charge the battery with
fast charging electric power (e.g., 9V/15 W), and if the Tx mode is
activated, the electronic device 601 may switch the charging
electric power of the battery from the fast charging electric power
(e.g., 9V/15 W) to normal charging electric power (e.g., 5V/10 W),
may transmit part (e.g., 5V/3.75) of the switched normal charging
power (e.g., 5V/10 W), as wireless power, to the wearable device
602, and may charge the battery using the remaining electric power
(e.g., 5V/6.25 W).
According to various embodiments, if the remaining capacity of the
battery 510 (e.g., the remaining battery capacity, the state of
charge (SOC), or a battery level) is equal to or less than a
designated value, the electronic device 601 may deactivate the Tx
mode. For example, if the remaining capacity of the battery 510 is
equal to or less than a designated value, the electronic device 601
may automatically deactivate the wireless power Tx mode, or may
deactivate a UI icon for activating the wireless power Tx mode. In
this case, even if the user touches the UI icon, the wireless power
Tx mode may not be activated, and the electronic device 601 may
output, to the user, a notification indicating that the wireless
power Tx mode cannot be activated due to a low battery 510.
According to various embodiments, the electronic device 601 may
activate the wireless power Tx mode in the case where the wired
charging device 603 is connected thereto even if the remaining
capacity of the battery 510 is equal to or less than a designated
value.
According to various embodiments, since the wearable device 602 is
wirelessly charged with electric power of 5V/3.75 W, if the wired
charging device 603 connected to the electronic device 601 is a 5V
travel adapter (TA) or a USB (SDP), which does not support fast
charging, the electronic device 601 may transmit wireless power by
wired input power without separate voltage conversion. On the other
hand, if the connected wired charging device 603 supports fast
charging (e.g., AFC, QC, or PD) (based on 9V/15 W), since the
external electric power is a high voltage of 9V or more, the
electronic device 601 may reduce the external electric power to a
level of 5V suitable for the wearable device 602. For example, if
the wired charging device 603 connected to the electronic device
601 is a device that supports fast charging, and if the external
device 602 is a wearable device 602, the electronic device 601 may
perform PWM switching in a TRX IC (e.g., the TRX IC 525-2 in FIG.
5), or may reduce the external electric power through a separate
converter circuit.
FIG. 7A illustrates an example of a user scenario of wirelessly
charging an external electronic device using a wireless charging
function of an electronic device according to an embodiment of the
disclosure, and FIG. 7B illustrates an example of a user scenario
of wirelessly charging an external electronic device using a
wireless charging function of an electronic device according to an
embodiment of the disclosure. Although the wireless power receiving
device 702 is illustrated as an electronic device (smart phone) 702
in the examples shown in FIGS. 7A and 7B, the wireless power
receiving device 702 may be any of various electronic devices that
can be wirelessly charged by receiving a relatively high power.
Referring to FIG. 7A, an electronic device 701 (e.g., the
electronic device 101 in FIG. 1) according to various embodiments
may activate a wireless power Tx mode, based on user input, and, if
the wireless power Tx mode is activated, may wirelessly supply
electric power to the external electronic device 702 using electric
power of a battery (e.g., the battery 510 in FIG. 5).
Referring to FIG. 7B, an electronic device 701 according to various
embodiments, if a wired charging device 703 supporting fast
charging (e.g., AFC, QC, or PD) (based on 9V/15 W) is connected
thereto, the electronic device 701 may receive electric power from
the wired charging device 703, thereby simultaneously supplying
electric power to the external electronic device 701 and charging
the battery 510.
Referring to FIG. 7A, the electronic device 701 (e.g., the
electronic device 101 in FIG. 1) according to various embodiments
may activate a wireless power Tx mode (e.g., a Tx mode), based on
user input, and, if the wireless power Tx mode is activated, may
wirelessly supply electric power to another electronic device 702
using electric power of a battery (e.g., the battery 510 in FIG.
5). According to an embodiment, the user input may include a user's
touch input through a display (e.g., the display device 160 in FIG.
1), manipulation of physical buttons provided on the outer side of
a housing (e.g., the housing 405 in FIG. 4), or an approach of an
external device (e.g., another electronic device 702 in FIG. 7A or
7B) to the electronic device 701.
Referring to FIG. 7B, the electronic device 701 according to
various embodiments, if a wired charging device 703 {or an external
power source (e.g., a TA)} is connected thereto, may charge the
battery 510 while (or in parallel with) supplying electric power to
another electronic device 702 by receiving electric power from the
wired charging device 703.
According to an embodiment, as shown in FIG. 7A, if a wireless
power Tx mode (e.g., a Tx mode) is activated in a stand-alone
state, the electronic device 701 may generate a designated electric
power (e.g., about 7.5V/7.5 W) using electric power of the battery
510, and may transmit the designated electric power through a coil
(e.g., the coil 525-1 in FIG. 5). For example, the stand-alone
state may denote the state in which the electronic device 701 is
not connected to the wired charging device 703.
According to an embodiment, as shown in FIG. 7B, if a wireless
power Tx mode is activated while the wired charging device 703 is
connected to the electronic device 701, or if the wired charging
device 703 is connected to the electronic device 601 while the
wireless power Tx mode is active in a stand-alone state, the
electronic device 701 may use part of the external electric power
received from the wired charging device 603 in wireless power
transmission, and may charge the battery 510 with the remaining
electric power. According to various embodiments, if a wireless
power Tx mode is activated while the wired charging device 703 is
connected to the electronic device 701, or if the wired charging
device 703 is connected to the electronic device 701 while the
wireless power Tx mode is active in a stand-alone state, the
electronic device 701 may use external electric power in wireless
power transmission in a designated first period, and may charge the
battery 510 with the external electric power in a designated second
period. According to an embodiment, the first period and the second
period may switch to each other according to a predetermined
criterion. For example, the electronic device 701 may alternately
perform the operation of using the external electric power in
wireless power transmission and the operation of using the external
electric power in charging the battery 510. This will be described
later with reference to the drawings.
According to various embodiments, if the wireless power Tx mode is
activated, the electronic device 701 may perform in-band
communication with the wireless power receiving device (or an
external device) according to designated standards (e.g., WPC
standards), and may exchange information used for wireless power
transmission with the wireless power receiving device. For example,
if the wireless power Tx mode is activated while the wired charging
device 703 is connected to the electronic device 701, the
electronic device 701 may identify a wireless power receiving
device (e.g., another electronic device 702 in FIG. 7A or 7B)
according to designated standards (e.g., WPC standards), and may
determine a designated electric power corresponding to the
identified wireless power receiving device. For example, the
electronic device 701 may identify that the wireless power
receiving device is another electronic device 702 (e.g., a smart
phone), and may determine a designated electric power (e.g., about
7.5V/7.5 W) corresponding to another electronic device 702.
According to an embodiment, if the connected wired charging device
703 supports fast charging (e.g., AFC, QC, or PD) (e.g., about
9V/15 W), the electronic device 701 may charge the external device
702 or the battery 510, based on the designated electric power
{e.g., fast charging power (e.g., about 9V/15 W)}. According to an
embodiment, if the connected wired charging device 703 is a device
that does not support fast charging, such as a 5V standard TA
(e.g., about 10 W power), a USB device {e.g., an SDP (e.g., about 5
W power) or a CDP (e.g., about 7.5 W power)}, the electronic device
701 may charge the external device 702 or the battery 510, based on
the designated electric power {e.g., normal charging power (e.g.,
about 5V/3.75 W)}.
According to various embodiments, if the wired charging device 703
is connected to the electronic device 701 and the wireless power Tx
mode is active, the electronic device 701 may perform a designated
operation, based on a designated event. According to an embodiment,
the designated event may include detachment of the wired charging
device 703, deactivation of the wireless power Tx mode, charging of
the battery 510 to a designated level or more, or full charging of
the wireless power receiving device (e.g., another electronic
device 702 in FIG. 7A or 7B). According to an embodiment, the
operation of the electronic device 701 according to a designated
event may correspond to the operation of the electronic device 601
in relation to a designated event described with reference to FIGS.
6A and 6B.
According to an embodiment, if the battery 510 is charged to a
designated level or more in the state in which the wired charging
device 703 is connected to the electronic device 701 and the
wireless power Tx mode is active, the electronic device 701 may
stop charging the battery 510, and may perform an operation of
transmitting a designated electric power to the wireless power
receiving device (e.g., another electronic device 702 in FIG. 7A or
7B), regardless of a designated period (e.g., a second period) for
charging the battery 510. For example, the electronic device 701
may use external electric power in wireless power transmission
without switching (or swapping) between a first period for using
external electric power received from the wired charging device 703
in wireless power transmission and a second period for using
external electric power in charging the battery 510. According to
an embodiment, if the remaining capacity of the battery 510 is
lowered below another designated level, the electronic device 701
may resume switching between the first period and the second
period, thereby performing an operation of transmitting a
designated electric power to the wireless power receiving device in
the first period and performing an operation of charging the
battery 510 in the second period.
According to an embodiment, the electronic device 701 may operate
by changing the remaining battery capacity reference according to
the first period or the second period, based on the remaining
battery capacity of the battery 510. According to an embodiment, an
example in which the first period and the second period are
separated based on a remaining battery capacity of about 85% will
be described. For example, if the remaining battery capacity of the
wireless power receiving device (e.g., another electronic device
702 in FIG. 7A or 7B) is about 85% or less, the electronic device
701 (e.g., a wireless power supply device) may operate, for
example, with a remaining battery capacity reference of about 1%
for wired charging and a remaining battery capacity reference of
about 0.9% for wireless power transmission (e.g., battery sharing)
by regarding a wireless power transmission function as more
important. As another example, if the remaining battery capacity of
the wireless power receiving device exceeds about 85%, the
electronic device 701 may operate, for example, with a remaining
battery capacity reference of about 3% for wired charging and a
remaining battery capacity reference of about 0.9% for wireless
power transmission (e.g., battery sharing) by regarding a wired
charging function of the electronic device 701 (e.g., a wireless
power supply device) as more important. According to an embodiment,
if the battery 510 is fully charged to 100%, the electronic device
701 (e.g., a wireless power supply device) may perform wireless
power transmission (e.g., battery sharing) to the wireless power
receiving device while maintaining the remaining battery capacity
to be about 100%.
According to various embodiments, if the remaining capacity of the
battery 510 is equal to or less than a designated value, the
electronic device 701 may deactivate the wireless power Tx mode.
For example, if the remaining capacity of the battery 510 is less
than or equal to a designated value {for example, the state of
charge (SOC) is less than N % (e.g., 15%, 20%, or 30%)}, the
electronic device 701 may automatically deactivate the wireless
power Tx mode, or may deactivate a UI icon for activating the
wireless power Tx mode. For example, if the remaining capacity of
the battery 510 is less than or equal to a designated value, the
electronic device 701 may stop the operation of transmitting a
designated electric power to the wireless power receiving device
(e.g., another electronic device 702 in FIG. 7A or 7B). In this
case, even if the user touches the UI icon, the wireless power Tx
mode may not be activated, and the electronic device 701 may
output, to the user, a notification indicating that the wireless
power Tx mode cannot be activated due to a low battery 510.
According to various embodiments, the electronic device 701 may
activate the wireless power Tx mode in the case where the wired
charging device 703 is connected thereto even if the remaining
capacity of the battery 510 is equal to or less than a designated
value. According to an embodiment, if the remaining capacity of the
battery 510 is equal to or less than a designated value, the
electronic device 701 may preferentially use external electric
power of the wired charging device 703 in charging the battery
510.
Table 2 may show examples in which the electronic device 701
receives a relatively high wireless power (e.g., 7.5V/7.5 W) (e.g.,
a second charging power) and transmits wireless power to a
rechargeable external electronic device 702 (e.g., a smart phone
702), as shown in FIGS. 7A and 7B.
TABLE-US-00002 TABLE 2 Wireless Connected power State of wired
Occurrence transmission Operation of electronic charging of of
electronic electronic device device event device device Wireless --
-- Performed Transmit power Tx wireless mode is power using
activated in battery power stand-alone state Wireless 5 V TA --
Performed Use external power Tx and USB electric power mode is in
wireless activated power during transmission, connection of and
determine wired whether or not charging to transmit device wireless
power and adjust transmission period, based on remaining battery
capacity AFC -- Performed Use external QC -- Performed electric
power PD -- Performed preferentially in wireless power transmission
and charge battery with remaining electric power Wired 5 V TA --
Performed Use external charging and USB electric power device is in
wireless connected power while wireless transmission, power Tx and
determine mode is active whether or not in stand-alone to transmit
state wireless power and adjust transmission period, based on
remaining battery capacity AFC -- Performed Use external QC --
Performed electric power PD -- Performed preferentially in wireless
power transmission and charge battery with remaining electric power
Wired Any wired Detachment Performed Transmit charging charging of
wired wireless device is device charging power using connected and
device battery power wireless Any wired Wireless Not Charge power
Tx charging power Tx performed battery using mode is active device
mode is external deactivated electric power Any wired External Not
Charge charging device is performed battery using device fully
charged external electric power Wireless Any wired External Not
Deactivate Tx power is charging device is performed mode and being
device connected to charge battery transmitted wired using external
charging electric power device
Case in which Wireless Power Tx Mode is Activated in Stand-Alone
State
Referring to Table 2, if a wireless power Tx mode is activated in a
stand-alone state, the electronic device 701 according to an
embodiment may generate a relatively high first designated electric
power (e.g., 7.5V/7.5 W) using electric power of the battery 510,
and may transmit the first designated electric power through a
coil. For example, the stand-alone state may denote the state in
which the electronic device 701 is not is connected to the wired
charging device 703.
Case in which Wireless Power Tx Mode is Activated During Connection
of Wired Charging Device 703
Referring to Table 2, if a wireless power Tx mode is activated
while the wired charging device 703 is connected to the electronic
device 701, the electronic device 701 may determine whether or not
to transmit wireless power, based on whether or not the wired
charging device 703 supports fast charging (e.g., AFC, QC, or PD)
(based on 9V/15 W).
According to various embodiments, if the wireless power Tx mode is
activated, the electronic device 701 may perform in-band
communication with the external device 702 according to designated
standards (e.g., WPC standards), and may exchange information used
for wireless power transmission with the external device 702. For
example, if the wireless power Tx mode is activated while the wired
charging device 703 is connected to the electronic device 701, the
electronic device 701 may identify the external device 702
according to designated standards (e.g., WPC standards), and may
determine a designated electric power corresponding to the
identified external device 702. For example, the electronic device
701 may identify that the external device 702 is a smart phone 702,
and may determine a first designated electric power (e.g., 7.5V/7.5
W) corresponding to the smart phone 702.
According to an embodiment, if the external device 702 is a device
that is wirelessly charged with a relatively high electric power,
such as a smart phone 702, the electronic device 701 may determine
whether or not to transmit wireless power, based on whether the
connected wired charging device 703 supports fast charging (e.g.,
AFC, QC, or PD) (based on 9V/15 W). For example, if the connected
wired charging device 703 supports fast charging (e.g., AFC, QC, or
PD) (based on 9V/15 W), the electronic device 701 may transmit
wireless power. In this case, the electronic device 701 may
preferentially generate a first designated electric power (e.g.,
7.5V/7.5 W) using the external electric power, thereby transmitting
the generated first designated electric power (e.g., 7.5V/7.5 W) to
the smart phone 702 that is an external device 702, and may provide
the remaining electric power of 7.5 W to the battery 510.
As another example, if the connected wired charging device 703 is a
5V standard travel adapter (TA) or USB, which does not support fast
charging, the electronic device 701 may determine whether or not to
transmit wireless power, or may adjust transmission period thereof,
based on the remaining capacity of the battery 510, thereby
transmitting wireless power.
According to an embodiment, as the operation of determining whether
or not to transmit wireless power or adjusting transmission period
thereof, the electronic device 701 may alternately perform an
operation of charging the battery 510 and an operation of
transmitting the wireless power. For example, the electronic device
701 may alternately perform an operation of charging the battery
510 during a first designated time and an operation of transmitting
the first designated electric power, based on the external electric
power supplied from the wired charging device 703, during a second
designated time. According to an embodiment, the first designated
time and the second designated time may be the same.
According to another embodiment, the electronic device 701 may
adjust the first designated time and the second designated time,
based on the remaining capacity of the battery 510. For example, if
the remaining capacity of the battery 510 is high (e.g., 70% or
more), the electronic device 701 may configure the second
designated time to be longer than the first designated time.
Accordingly, the operation of transmitting the first designated
electric power may take more time. As another example, if the
remaining capacity of the battery 510 is low (e.g., less than 50%),
the electronic device 701 may configure the first designated time
to be longer than the second designated time. Accordingly, the
operation of charging the battery 510 may take more time.
According to another embodiment, if the wired charging device 703
is a 5V standard travel adapter (TA) or USB, which does not support
fast charging, the electronic device 701 may identify the initial
remaining battery capacity (e.g., 48%) at the time at which the
wired charging device 703 is initially connected, and may adjust
the first designated time and the second designated time such that
the initial remaining battery capacity (e.g., 48%) is not further
lowered while alternately performing the operation of charging the
battery 510 and the operation of transmitting wireless power. That
is, if it is determined that the remaining battery capacity will
become lower than the initial remaining battery capacity (e.g.,
48%) due to the transmission of wireless power, the electronic
device 701 may reduce the currently configured second designated
time, and may increase the currently configured first designated
time. Accordingly, the electronic device 701 may maintain the
minimum value of the remaining capacity of the battery 510 to be
the initial remaining battery capacity (e.g., 48%), or may increase
the same even if the first designated electric power is
transmitted.
According to various embodiments, if the connected wired charging
device 703 does not support fast charging, the electronic device
701 may identify the remaining capacity of the battery 510, and may
compare the remaining capacity of the battery 510 with a designated
value. For example, the designated value may be configured based on
user input. For example, the designated value may be 50%, and the
electronic device 701 may determine whether or not the remaining
capacity of the battery 510 exceeds 50%. If the remaining capacity
of the battery 510 is greater than or equal to a designated value
(e.g., 50%), the electronic device 701 may transmit the first
designated electric power. On the other hand, if the remaining
capacity of the battery 510 is less than a designated value (e.g.,
50%), the electronic device 701 may charge the battery 510 using
the external electric power supplied from the wired charging
device, instead of transmitting wireless power. According to an
embodiment, in the case where the electronic device 701 charges the
battery 510 using the external electric power supplied from the
wired charging device without transmitting wireless power, the
electronic device 701 may display a designated notification through
a display (e.g., the display device 160 in FIG. 1). Referring to
FIG. 9, the electronic device 901 (e.g., the electronic device 101
in FIG. 1) may control the display 910 (e.g., the display device
160 in FIG. 1) to display a message 911 indicating that the
electronic device 901 is preferentially charging the battery until
the remaining battery capacity reaches a designated value.
According to various embodiments, the message illustrated in FIG. 9
is only an example, and may be variously changed based on the
following scenarios.
According to an embodiment, if the battery 510 is charged such that
the remaining capacity of the battery 510 reaches the designated
value (e.g., 50%) or more, the electronic device 701 may transmit
the first designated electric power through a wireless
interface.
According to various embodiments, if the connected wired charging
device 703 does not support fast charging, and if the remaining
capacity of the battery 510 is less than a designated value (e.g.,
50%), the electronic device 701 may adjust a period to transmit
wireless power. For example, the electronic device 701 may
alternately perform an operation of charging the battery 510 and an
operation of transmitting wireless power. For example, if the wired
charging device 703 does not support fast charging, and if the
remaining capacity of the battery 510 is less than a designated
value (e.g., 50%), the electronic device 701 may alternately
perform an operation of charging the battery 510 during a first
designated time and an operation of transmitting the first
designated electric power, based on the external electric power
supplied from the wired charging device 703, during a second
designated time. According to an embodiment, the first designated
time and the second designated time may be the same. According to
various embodiments, the first designated time and the second
designated time may be configured to be different from each other,
based on user input.
According to various embodiments, the electronic device 701 may
alternately perform the operation of charging the battery 510 and
the operation of transmitting wireless power, thereby charging the
battery 510 and a battery of the external electronic device
702.
According to an embodiment, if the connected wired charging device
703 is a USB power delivery (PD), the electronic device 701 may
determine whether or not the USB PD is able to supply electric
power of 9V. For example, the electronic device 701 may make a
request to the USB PD standard wired charging device 703 for
boosting the external electric power to 9V, and if the USB PD
standard wired charging device 703 supplies electric power of 9V in
response to the request, the electronic device 701 may transmit
wireless power using the supplied external electric power. If the
USB PD standard wired charging device 703 does not support 9V, the
electronic device 701 may perform an operation the same as or
similar to the operation performed in the case where the 5V
standard travel adapter (TA) or USB, which does not support fast
charging, is connected to the electronic device, as described
above.
Case in which Wired Charging Device 703 is Connected while Wireless
Power Tx Mode is Active in Stand-Alone State
Referring to Table 2, if the wired charging device 703 is connected
while the wireless power Tx mode is active in a stand-alone state,
the electronic device 701 according to an embodiment may determine
whether or not to transmit wireless power, based on whether or not
the wired charging device 703 supports fast charging (e.g., AFC,
QC, or PD) (based on 9V/15 W). For example, if the wired charging
device 703 supports fast charging, the electronic device 701 may
maintain the operation of transmitting a first designated electric
power to the external device 702, and may further charge the
battery 510. In this case, the electronic device 701 may
preferentially generate a first designated electric power (e.g.,
7.5V/7.5 W) using the external electric power, thereby transmitting
the generated first designated electric power (e.g., 7.5V/7.5 W) to
the smart phone 702 corresponding to the external device 702, and
may supply the remaining electric power of 7.5 W to the battery
510.
As another example, if the connected wired charging device 703 is a
5V standard travel adapter (TA) or USB, which does not support fast
charging, the electronic device 701 may determine whether or not to
transmit wireless power, or may adjust transmission period thereof,
based on the remaining capacity of the battery 510, thereby
transmitting wireless power.
According to an embodiment, as the operation of determining whether
or not to transmit wireless power and adjusting transmission period
thereof, the electronic device 701 may alternately perform an
operation of charging the battery 510 and an operation of
transmitting the wireless power. For example, the electronic device
701 may alternately perform an operation of charging the battery
510 during a first designated time and an operation of transmitting
the first designated electric power, based on the external electric
power supplied from the wired charging device 703, during a second
designated time. According to an embodiment, the first designated
time and the second designated time may be the same.
According to another embodiment, the electronic device 701 may
adjust the first designated time and the second designated time,
based on the remaining capacity of the battery 510. For example, if
the remaining capacity of the battery 510 is high (e.g., 70% or
more), the electronic device 701 may configure the second
designated time to be longer than the first designated time.
Accordingly, the operation of transmitting the first designated
electric power may take more time. As another example, if the
remaining capacity of the battery 510 is low (e.g., less than 50%),
the electronic device 701 may configure the first designated time
to be longer than the second designated time. Accordingly, the
operation of charging the battery 510 may take more time.
According to another embodiment, if the wired charging device 703
is a 5V standard travel adapter (TA) or USB, which does not support
fast charging, the electronic device 701 may identify the initial
remaining battery capacity (e.g., 48%) at the time at which the
wired charging device 703 is initially connected, and may adjust
the first designated time and the second designated time such that
the initial remaining battery capacity (e.g., 48%) is not lowered
while alternately performing the operation of charging the battery
510 and the operation of transmitting wireless power. That is, if
it is determined that the remaining battery capacity will become
lower than the initial remaining battery capacity (e.g., 48%) due
to the transmission of wireless power, the electronic device 701
may reduce the currently configured second designated time, and may
increase the currently configured first designated time.
Accordingly, the electronic device 701 may maintain the minimum
value of remaining capacity of the battery 510 to be the initial
remaining battery capacity (e.g., 48%), or may increase the same
even if the first designated electric power is transmitted.
According to various embodiments, if the connected wired charging
device 703 does not support fast charging, the electronic device
701 may identify the remaining capacity of the battery 510, and may
compare the remaining capacity of the battery 510 with a designated
value. For example, the designated value may be configured based on
user input. For example, the designated value may be 50%, and the
electronic device 701 may determine whether or not the remaining
capacity of the battery 510 exceeds 50%. If the remaining capacity
of the battery 510 is greater than or equal to a designated value
(e.g., 50%), the electronic device 701 may maintain the
transmission of the first designated electric power. On the other
hand, if the remaining capacity of the battery 510 is less than a
designated value (e.g., 50%), the electronic device 701 may stop
transmitting the first designated electric power, and may charge
the battery 510 using the external electric power supplied from the
wired charging device. According to an embodiment, in the case
where the electronic device 701 stops transmitting the first
designated wireless power and charges the battery 510 using the
external electric power supplied from the wired charging device,
the electronic device 701 may display a designated notification
through a display (e.g., the display device 160 in FIG. 1). For
example, the electronic device 701 may display a message 911
indicating that the electronic device 701 is preferentially
charging the battery until the remaining battery capacity reaches a
designated value, as shown in FIG. 9. According to various
embodiments, the message illustrated in FIG. 9 is only an example,
and may be variously changed based on the following scenarios.
According to an embodiment, if the battery 510 is charged such that
the remaining capacity of the battery 510 reaches the designated
value (e.g., 50%) or more, the electronic device 701 may again
transmit the first designated electric power through a wireless
interface.
According to various embodiments, if the connected wired charging
device 703 does not support fast charging, and if the remaining
capacity of the battery 510 is less than a designated value (e.g.,
50%), the electronic device 701 may adjust a period to transmit
wireless power. For example, the electronic device 701 may
alternately perform an operation of charging the battery 510 and an
operation of transmitting wireless power. For example, if the wired
charging device 703 does not support fast charging, and if the
remaining capacity of the battery 510 is less than a designated
value (e.g., 50%), the electronic device 701 may alternately
perform an operation of charging the battery 510 during a first
designated time and an operation of transmitting the first
designated electric power, based on the external electric power
supplied from the wired charging device 703, during a second
designated time. According to an embodiment, the first designated
time and the second designated time may be the same. According to
various embodiments, the first designated time and the second
designated time may be configured to be different from each other,
based on user input.
According to various embodiments, the electronic device 701 may
alternately perform the operation of charging the battery 510 and
the operation of transmitting wireless power, thereby charging the
battery 510 and a battery of the external electronic device
702.
According to an embodiment, if the connected wired charging device
703 is a USB power delivery (PD), the electronic device 701 may
determine whether or not the USB PD is able to supply electric
power of 9V. For example, the electronic device 701 may make a
request to the USB PD standard wired charging device 703 for
boosting the external electric power to 9V, and if the USB PD
standard wired charging device 703 supplies electric power of 9V in
response to the request, the electronic device 701 may transmit
wireless power using the supplied external electric power. If the
USB PD standard wired charging device 703 does not support 9V, the
electronic device 701 may perform an operation the same as or
similar to the operation performed in the case where the 5V
standard travel adapter (TA) or USB, which does not support fast
charging, is connected to the electronic device, as described
above.
Case in which Designated Event Occurs while Wired Charging Device
703 is Connected and Wireless Power Tx Mode is Active
Referring to Table 2, if the wired charging device 703 is connected
to the electronic device 701, and if the wireless power Tx mode is
active, the electronic device 701 may perform a designated
operation, based on a designated event. According to an embodiment,
the designated event may include detachment of the wired charging
device 703, deactivation of the wireless power Tx mode, full
charging of the external device 702, or connection of the external
device 702 to the wired charging device 703.
According to an embodiment, if the wired charging device 703 is
detached in the state in which the wired charging device 703 is
connected to the electronic device 701 and in which the wireless
power Tx mode is active, the electronic device 701 may maintain the
operation of transmitting a designated electric power to the
external device 702, and may stop the operation of charging the
battery 510.
According to an embodiment, if the wireless power Tx mode is
deactivated based on user input in the state in which the wired
charging device 703 is connected to the electronic device 701 and
in which the wireless power Tx mode is active, the electronic
device 701 may stop the operation of transmitting a designated
electric power to the external device 702. For example, if the
wired charging device 703 is connected, the electronic device 701
may charge the battery 510 using external electric power. As
another example, if the connected wired charging device 703
supports fast charging (e.g., AFC, QC, or PD) (based on 9V/15 W),
the electronic device 701 may switch the charging electric power
for the battery 510 from 7.5 W to 9V/15 W.
According to an embodiment, if the external device 702 is fully
charged in the state in which the wired charging device 703 is
connected to the electronic device 701 and in which the wireless
power Tx mode is active, the electronic device 701 may stop the
operation of transmitting a designated electric power to the
external device 702. For example, the electronic device 701 may
receive a designated signal indicating that the external device 702
has been fully charged from the external device 702 receiving the
wireless power, and may deactivate the wireless power Tx mode in
response to the designated signal. For example, if the wired
charging device 703 is connected to the electronic device 701 after
deactivating the wireless power Tx mode, the electronic device 701
may charge the battery 510 using external electric power. As
another example, if the connected wired charging device 703
supports fast charging (e.g., AFC, QC, or PD) (based on 9V/15 W),
the electronic device 701 may switch the charging electric power
for the battery 510 from 7.5 W to 9V/15 W.
According to an embodiment, if the electronic device 701 detects
that the external device 702 is connected to the wired charging
device 703, the electronic device 701 may stop transmitting a
designated electric power to the external device 702. For example,
the electronic device 701 may receive a designated signal
indicating that the wired charging device 703 is connected to the
external device 702 from the external device 702 receiving the
wireless power, and may deactivate the wireless power Tx mode in
response to the designated signal. For example, if the wired
charging device 703 is connected after deactivating the wireless
power Tx mode, the electronic device 701 may charge the battery 510
using external electric power. As another example, if the connected
wired charging device 703 supports fast charging (e.g., AFC, QC, or
PD) (based on 9V/15 W), the electronic device 701 may switch the
charging electric power for the battery 510 from 7.5 W to 9V/15
W.
As in the above scenario, the smart phone 702, which is an external
device 702, has a relatively large capacity of the battery 510 and
may use a high charging power. For example, the smart phone 702 can
be wirelessly charged only by a high electric power of about
7.5V/7.5 W. Accordingly, the electronic device 701 may determine
whether or not to transmit wireless power, based on whether or not
the connected wired charging device 703 supports fast charging
(e.g., AFC, QC, or PD) (based on 9V/15 W).
According to various embodiments, if the remaining capacity of the
battery 510 is equal to or less than a designated value, the
electronic device 701 may deactivate the Tx mode. For example, if
the remaining capacity of the battery 510 is less than or equal to
a designated value (for example, the SOC is less than 30%), the
electronic device 701 may automatically deactivate the wireless
power Tx mode, or may deactivate a UI icon for activating the
wireless power Tx mode. In this case, even if the user touches the
UI icon, the wireless power Tx mode may not be activated, and the
electronic device 701 may output, to the user, a notification
indicating that the wireless power Tx mode cannot be activated due
to a low battery 510.
According to various embodiments, the electronic device 701 may
activate the wireless power Tx mode in the case where the wired
charging device 703 is connected thereto even if the remaining
capacity of the battery 510 is equal to or less than a designated
value.
According to various embodiments, the operations performed by the
electronic device 101, which will be described below, may be
executed by at least one processor (e.g., at least one processor
including a processing circuit) (e.g., the processor 120 in FIG. 1)
(hereinafter, referred to as a "processor" 120) of the electronic
device 101. According to an embodiment, the operations performed by
the electronic device 101 may be executed by instructions that are
stored in a memory (e.g., the memory 130 in FIG. 1) (hereinafter,
referred to as a "memory" 130) and, when executed, cause the
processor 120 to operate.
FIG. 8 is a flowchart illustrating the operation of an electronic
device according to an embodiment of the disclosure.
FIG. 9 illustrates an example of a user interface indicating that
the battery is preferentially charged according to an embodiment of
the disclosure. FIG. 10 illustrates an example of a user interface
indicating deactivation of a wireless power Tx mode, based on full
charging of an external device according to an embodiment of the
disclosure.
In operation 801, an electronic device (e.g., the electronic device
501 in FIG. 5) according to an embodiment may activate a wireless
power Tx mode, based on a user input, in a stand-alone state. For
example, the user input may include a user's touch input through a
display or manipulation of physical buttons provided on the outer
side of a housing (e.g., the housing 405 in FIG. 4). For example,
the stand-alone state may denote the state in which the electronic
device 501 is not connected to a wired charging device (e.g., the
first external device 502 in FIG. 5) (hereinafter, referred to as
"wired charging device 502").
In operation 802, if the wireless power Tx mode is activated, the
electronic device 501 according to an embodiment may identify an
external device (e.g., the second external device 503 in FIG. 5)
according to designated standards (e.g., the WPC standards). For
example, the electronic device 501 may perform in-band
communication with the external device 503, and may exchange
information used for wireless power transmission with the external
device 503. According to an embodiment, the electronic device 501
may determine a designated electric power to be transmitted to the
external device 503 from the electronic device 501 by performing an
identification and configuration step according to the WPC
standards or a separate non-standard communication method. For
example, the electronic device 501 may perform the identification
and configuration step in the WPC standards or non-standard
communication method, thereby identifying that the external device
503 is a wearable device, and may determine a second designated
electric power (e.g., 5V/3.75 W) corresponding to the wearable
device. As another example, the electronic device 501 may perform
the identification and configuration step in the WPC standards,
thereby identifying that the external device 503 is a smart phone,
and may determine a first designated electric power (e.g., 7.5
V/7.5 W) corresponding to the smart phone.
In operation 803, the electronic device 501 according to an
embodiment may transmit a designated electric power used for the
external device 503 using electric power of a battery (e.g., the
battery 510 in FIG. 5). For example, if the external device 503 is
a device that can be wirelessly charged by a relatively low
electric power, such as a wearable device, the electronic device
501 may transmit a second designated electric power (e.g., 5V/3.75
W) corresponding to the wearable device. As another example, if the
external device 503 is a device that can be wirelessly charged by a
relatively high power, such as a smart phone, the electronic device
501 may transmit a first designated electric power (e.g., 7.5 V/7.5
W) corresponding to the smart phone.
In operations 804 and 805, the electronic device 501 according to
an embodiment may detect a connection of the wired charging device
502, and if the connection of the wired charging device 502 is
detected, the electronic device 501 may identify the type of the
wired charging device 502. For example, the electronic device 501
may identify whether or not the connected wired charging device 502
supports fast charging (e.g., AFC, QC, or PD) (based on 9V/15 W).
As another example, the electronic device 501 may identify whether
or not the connected wired charging device 502 is a 5V standard
travel adapter (TA) or USB (SDP) device, which does not support
fast charging.
In operation 806, if the external device 503 is a device that is
wirelessly charged with a relatively high power, such as a smart
phone, the electronic device 501 may determine whether or not to
transmit wireless power, based on whether or not the connected
wired charging device 502 supports fast charging (e.g., AFC, QC, or
PD) (based on 9V/15 W). For example, if the connected wired
charging device 502 supports fast charging (e.g., AFC, QC, or PD)
(based on 9V/15 W), the electronic device 501 may maintain wireless
power transmission. In this case, the electronic device 501 may
preferentially generate a first designated electric power (e.g.,
7.5V/7.5 W) using the external electric power, thereby transmitting
the generated first designated electric power (e.g., 7.5V/7.5 W) to
the smart phone, which is the external device 503, and may provide
the remaining electric power of 7.5 W to the battery 510.
As another example, if the connected wired charging device 703 is a
5V standard travel adapter (TA) or USB, which does not support fast
charging, the electronic device 501 may determine whether or not to
transmit wireless power, or may adjust transmission period thereof,
based on the remaining capacity of the battery 510, thereby
transmitting wireless power.
According to an embodiment, as the operation of determining whether
or not to transmit wireless power or adjusting transmission period
thereof, the electronic device 501 may alternately perform an
operation of charging the battery 510 and an operation of
transmitting the wireless power. For example, the electronic device
501 may alternately perform an operation of charging the battery
510 during a first designated time and an operation of transmitting
the first designated electric power, based on the external electric
power supplied from the wired charging device 703, during a second
designated time. According to an embodiment, the first designated
time and the second designated time may be the same.
According to another embodiment, the electronic device 501 may
adjust the first designated time and the second designated time,
based on the remaining capacity of the battery 510. For example, if
the remaining capacity of the battery 510 is high (e.g., 70% or
more), the electronic device 501 may configure the second
designated time to be longer than the first designated time.
Accordingly, the operation of transmitting the first designated
electric power may take more time. As another example, if the
remaining capacity of the battery 510 is low (e.g., less than 50%),
the electronic device 501 may configure the first designated time
to be longer than the second designated time. Accordingly, the
operation of charging the battery 510 may take more time.
According to another embodiment, if the wired charging device 703
is a 5V standard travel adapter (TA) or USB, which does not support
fast charging, the electronic device 501 may identify the initial
remaining battery capacity (e.g., 48%) at the time at which the
wired charging device 703 is initially connected, and may adjust
the first designated time and the second designated time such that
the initial remaining battery capacity (e.g., 48%) is not lowered
while alternately performing the operation of charging the battery
510 and the operation of transmitting wireless power. That is, if
it is determined that the remaining battery capacity will become
lower than the initial remaining battery capacity (e.g., 48%) due
to the transmission of wireless power, the electronic device 501
may reduce the currently configured second designated time, and may
increase the currently configured first designated time.
Accordingly, the electronic device 501 may maintain the minimum
value of remaining capacity of the battery 510 to be the initial
remaining battery capacity (e.g., 48%), or may increase the same
even if the first designated electric power is transmitted.
According to various embodiments, if the connected wired charging
device 703 does not support fast charging, the electronic device
501 may identify the remaining capacity of the battery 510, and may
compare the remaining capacity of the battery 510 with a designated
value. For example, the designated value may be configured based on
user input. For example, the designated value may be 50%, and the
electronic device 501 may determine whether or not the remaining
capacity of the battery 510 exceeds 50%. If the remaining capacity
of the battery 510 is greater than or equal to a designated value
(e.g., 50%), the electronic device 501 may maintain the
transmission of the first designated electric power. On the other
hand, if the remaining capacity of the battery 510 is less than a
designated value (e.g., 50%), the electronic device 501 may stop
transmitting the first designated electric power, and may charge
the battery 510 using the external electric power supplied from the
wired charging device. According to an embodiment, in the case
where the electronic device 501 stops transmitting the first
designated electric power and charges the battery 510 using the
external electric power supplied from the wired charging device,
the electronic device 501 may display a designated notification
through a display (e.g., the display device 160 in FIG. 1). For
example, as shown in FIG. 9, if the connected wired charging device
902 (e.g., the first external device 502 in FIG. 5) does not
support fast charging, and if the remaining capacity of the battery
510 is less than a designated value (e.g., 50%), the electronic
device 501 (e.g., the electronic device 101 in FIG. 1) may display
a message 911 indicating that the electronic device 501 is
preferentially charging the battery until the remaining battery
capacity reaches a designated value. According to various
embodiments, the message illustrated in FIG. 9 is only an example,
and may be variously changed based on the following scenarios.
According to an embodiment, if the battery 510 is charged such that
the remaining capacity of the battery 510 reaches the designated
value (e.g., 50%) or more, the electronic device 501 may transmit
the first designated electric power through a wireless
interface.
According to various embodiments, if the connected wired charging
device 703 does not support fast charging, and if the remaining
capacity of the battery 510 is less than a designated value (e.g.,
50%), the electronic device 501 may adjust a period to transmit
wireless power. For example, the electronic device 501 may
alternately perform an operation of charging the battery 510 and an
operation of transmitting wireless power. For example, if the wired
charging device 703 does not support fast charging, and if the
remaining capacity of the battery 510 is less than a designated
value (e.g., 50%), the electronic device 501 may alternately
perform the operation of charging the battery 510 during a first
designated time and an operation of transmitting the first
designated electric power, based on the external electric power
supplied from the wired charging device 703, during a second
designated time. According to an embodiment, the first designated
time and the second designated time may be the same. According to
various embodiments, the first designated time and the second
designated time may be configured to be different from each other,
based on user input.
According to various embodiments, the electronic device 501 may
alternately perform the operation of charging the battery 510 and
the operation of transmitting wireless power, thereby charging the
battery 510 and a battery of the external electronic device
702.
In operation 806, if the external device 503 is a device that is
wirelessly charged by a relatively low electric power, such as a
wearable device, the electronic device 501 according to an
embodiment may maintain the wireless power transmission, regardless
of whether or not the connected wired charging device 502 supports
fast charging. For example, if the external device 503 is a
wearable device, and if the connected wired charging device 502
supports fast charging (e.g., AFC, QC, or PD) (based on 9V/15 W),
the electronic device 501 may switch to a normal charging mode to
preferentially generate a second designated electric power (e.g.,
5V/3.75 W) using the external electric power, to transmit the
generated second designated electric power to the wearable device,
and to supply the remaining electric power of 5V/6.25 W to the
battery 510. For example, if the connected wired charging device
603 supports fast charging, the electronic device 601 may charge
the battery with fast charging power (e.g., 9V/15 W), and if the Tx
mode is activated, the electronic device 601 may switch the
charging power for the battery from the fast charging power (e.g.,
9V/15 W) to normal charging power (e.g., 5V/10 W), may transmit
part (e.g., 5V/3.75 W) of the switched normal charging power (e.g.,
5V/10 W), as wireless power, to the wearable device 602, and may
charge the battery using the remaining electric power (e.g.,
5V/6.25 W).
According to an embodiment, if the connected wired charging device
603 is a device that does not support fast charging, such as a 5V
standard travel adapter (TA) (e.g., 10 W power) or a USB device
{e.g., a standard downstream port (SDP) (e.g., 5 W power) or a
charging downstream port (CDP) (e.g., 7.5 W power)}, the electronic
device 601 may transmit a second designated electric power (e.g.,
5V/3.75 W) to the wearable device 602, and may supply the system or
charge the battery 510 with the remaining electric power.
In operations 807 and 808, the electronic device 501 according to
an embodiment may detect the occurrence of a designated event while
transmitting a designated electric power, based on the
determination that wireless power is to be transmitted, and may
perform a designated operation in response to the designated event.
According to an embodiment, the designated event may include
detachment of the wired charging device 502, deactivation of the
wireless power Tx mode, full charging of the external device 503,
or connection of the external device 503 to the wired charging
device 502. According to various embodiments, the electronic device
501 may selectively perform operation 807 and operation 808.
According to an embodiment, if the wired charging device 502 is
detached in the state in which the wired charging device 502 is
connected to the electronic device 501 and in which the wireless
power Tx mode is active, the electronic device 501 may maintain the
operation of transmitting a designated electric power to the
external device 503, and may stop the operation of charging the
battery 510.
According to an embodiment, if the wireless power Tx mode is
deactivated based on user input in the state in which the wired
charging device 502 is connected to the electronic device 501 and
in which the wireless power Tx mode is active, the electronic
device 501 may stop the operation of transmitting a designated
electric power to the external device 503. For example, if the
wired charging device 502 is connected to the electronic device
501, the electronic device 501 may charge the battery 510 using
external electric power. As another example, if the connected wired
charging device 502 supports fast charging (e.g., AFC, QC, or PD)
(based on 9V/15 W), the electronic device 501 may switch the
charging electric power for the battery 510 from 5V/10 W to 9V/15
W.
According to an embodiment, if the external device 503 is fully
charged in the state in which the wired charging device 502 is
connected to the electronic device 501 and in which the wireless
power Tx mode is active, the electronic device 501 may stop the
operation of transmitting a designated electric power to the
external device 503. For example, the electronic device 501 may
receive a designated signal indicating that the external device 503
has been fully charged from the external device 503 receiving the
wireless power, and may deactivate the wireless power Tx mode in
response to the designated signal. For example, if the wired
charging device 502 is connected to the electronic device 501, the
electronic device 501 may charge the battery 510 using external
electric power. As another example, if the connected wired charging
device 502 supports fast charging (e.g., AFC, QC, or PD) (based on
9V/15 W), the electronic device 501 may switch the charging
electric power for the battery 510 from 5V/10 W to 9V/15 W.
According to an embodiment, if the electronic device 501 detects
that the external device 503 is connected to the wired charging
device 502, the electronic device 501 may stop transmitting a
designated electric power to the external device 503. For example,
the electronic device 501 may receive a designated signal
indicating that the wired charging device 502 is connected to the
external device 503 from the external device 503 receiving the
wireless power, and may deactivate the wireless power Tx mode in
response to the designated signal. For example, if the wired
charging device 502 is connected after deactivating the wireless
power Tx mode, the electronic device 501 may charge the battery 510
using external electric power. As another example, if the connected
wired charging device 502 supports fast charging (e.g., AFC, QC, or
PD) (based on 9V/15 W), the electronic device 501 may switch the
charging electric power for the battery 510 from 7.5 W to 9V/15 W.
According to an embodiment, if the electronic device 501 detects
that the external device 503 is connected to the wired charging
device, the electronic device 501 may output a notification
indicating that the external device 503 has been fully charged so
that wireless power transmission ends.
Referring to FIG. 10, according to an embodiment, the notification
may be a user interface related to wireless power transmission. For
example, if the electronic device 1001 (e.g., the electronic device
101 in FIG. 1) detects that an external device (e.g., the second
electronic device 302 in FIG. 3) is connected to a wired charging
device (e.g., the external power source 304 in FIG. 3), the
electronic device 1001 may control the display 1010 (e.g., the
display device 160 in FIG. 1) so as to display a user interface
related to wireless power transmission. According to an embodiment,
the user interface may include a pop-up message 1011 "External
device has been fully charged and wireless power transmission has
ended." If the wireless power transmission ends, the electronic
device 1001 may charge the battery 510 using external electric
power from the wired charging device 1002.
FIG. 11 is a flowchart illustrating the operation of an electronic
device 501 according to an embodiment of the disclosure.
Referring to FIG. 11, in operations 1101 and 1102, an electronic
device (e.g., the electronic device 501 in FIG. 5) according to an
embodiment may detect a connection of a wired charging device
(e.g., the first external device 502 in FIG. 5), and may charge a
battery (e.g., the battery 510 in FIG. 5) using external electric
power from the wired charging device 502. The electronic device 501
may determine whether or not the connected wired charging device
502 supports fast charging (e.g., AFC, QC, or PD) (based on 9V/15
W). As another example, the electronic device 501 may identify
whether the connected wired charging device 502 is a 5V standard
travel adapter (TA) or USB (SDP), which does not support fast
charging.
In operation 1103, the electronic device 501 according to an
embodiment may activate a wireless power Tx mode, based on user
input. For example, the user input may include a user's touch input
through a display or manipulation of physical buttons provided on
the outer side of the housing (e.g., the housing 405 in FIG.
4).
In operation 1104, if the wireless power Tx mode is activated, the
electronic device 501 according to an embodiment may identify an
external device (e.g., the second external device 503 in FIG. 5)
according to designated standards (e.g., WPC standards). The
electronic device 501 may perform in-band communication with the
external device 503, and may exchange information used for wireless
power transmission with the external device 503. According to an
embodiment, the electronic device 501 may determine a designated
electric power to be transmitted to the external device 503 from
the electronic device 501 by performing an identification and
configuration step according to the WPC standards or a non-standard
method. For example, the electronic device 501 may perform the
identification and configuration step in the WPC standards or
non-standard communication method, thereby identifying that the
external device 503 is a wearable device, and may determine a
second designated electric power (e.g., 5V/3.75 W) corresponding to
the wearable device. As another example, the electronic device 501
may perform the identification and configuration step in the WPC
standards, thereby identifying that the external device 503 is a
smart phone, and may determine a first designated electric power
(e.g., 7.5V/7.5 W) corresponding to the smart phone.
In operation 1105, if the external device 503 is a device that is
wirelessly charged with a relatively high electric power, such as a
smart phone, the electronic device 501 according to an embodiment
may determine whether or not to transmit wireless power, based on
whether or not the connected wired charging device 502 supports
fast charging (e.g., AFC, QC, or PD) (based on 9V/15 W). For
example, if the connected wired charging device 502 supports fast
charging (e.g., AFC, QC, or PD) (based on 9V/15 W), the electronic
device 501 may transmit wireless power. In this case, the
electronic device 501 may preferentially generate a first
designated electric power (e.g., 7.5V/7.5 W) using the external
electric power, thereby transmitting the generated first designated
electric power (e.g., 7.5V/7.5 W) to the smart phone, which is the
external device 503, and may supply the remaining electric power of
7.5 W to the battery 510.
As another example, if the connected wired charging device 703 is a
5V standard travel adapter (TA) or USB, which does not support fast
charging, the electronic device 501 may determine whether or not to
transmit wireless power, or may adjust transmission period thereof,
based on the remaining capacity of the battery 510, thereby
transmitting wireless power.
According to an embodiment, as the operation of determining whether
or not to transmit wireless power or adjusting transmission period
thereof, the electronic device 501 may alternately perform an
operation of charging the battery 510 and an operation of
transmitting the wireless power. For example, the electronic device
501 may alternately perform an operation of charging the battery
510 during a first designated time and an operation of transmitting
the first designated electric power, based on the external electric
power supplied from the wired charging device 703, during a second
designated time. According to an embodiment, the first designated
time and the second designated time may be the same.
According to another embodiment, the electronic device 501 may
adjust the first designated time and the second designated time,
based on the remaining capacity of the battery 510. For example, if
the remaining capacity of the battery 510 is high (e.g., 70% or
more), the electronic device 501 may configure the second
designated time to be longer than the first designated time.
Accordingly, the operation of transmitting the first designated
electric power may take more time. As another example, if the
remaining capacity of the battery 510 is low (e.g., less than 50%),
the electronic device 501 may configure the first designated time
to be longer than the second designated time. Accordingly, the
operation of charging the battery 510 may take more time.
According to another embodiment, if the wired charging device 703
is a 5V standard travel adapter (TA) or USB, which does not support
fast charging, the electronic device 501 may identify the initial
remaining battery capacity (e.g., 48%) at the time at which the
wired charging device 703 is initially connected, and may adjust
the first designated time and the second designated time such that
the initial remaining battery capacity (e.g., 48%) is not lowered
while alternately performing the operation of charging the battery
510 and the operation of transmitting wireless power. That is, if
it is determined that the remaining battery capacity will become
lower than the initial remaining battery capacity (e.g., 48%) due
to the transmission of wireless power, the electronic device 501
may reduce the currently configured second designated time, and may
increase the currently configured first designated time.
Accordingly, the electronic device 501 may maintain the minimum
value of remaining capacity of the battery 510 to be the initial
remaining battery capacity (e.g., 48%), or may increase the same
even if the first designated electric power is transmitted.
According to various embodiments, if the connected wired charging
device 703 does not support fast charging, the electronic device
501 may identify the remaining capacity of the battery 510, and may
compare the remaining capacity of the battery 510 with a designated
value. For example, the designated value may be configured based on
user input. For example, the designated value may be 50%, and the
electronic device 501 may determine whether or not the remaining
capacity of the battery 510 exceeds 50%. If the remaining capacity
of the battery 510 is greater than or equal to a designated value
(e.g., 50%), the electronic device 501 may transmit the first
designated electric power. On the other hand, if the remaining
capacity of the battery 510 is less than a designated value (e.g.,
50%), the electronic device 501 may charge the battery 510 using
the external electric power supplied from the wired charging
device, instead of transmitting wireless power. According to an
embodiment, in the case where the electronic device 501 charges the
battery 510 using the external electric power supplied from the
wired charging device without transmitting wireless power, the
electronic device 501 may display a designated notification through
a display (e.g., the display device 160 in FIG. 1). For example,
the electronic device 501 may display a message 911 indicating that
the electronic device 501 is preferentially charging the battery
until the remaining battery capacity reaches a designated value, as
shown in FIG. 9. According to various embodiments, the message
illustrated in FIG. 9 is only an example, and may be variously
changed based on the following scenarios.
According to an embodiment, if the battery 510 is charged such that
the remaining capacity of the battery 510 reaches the designated
value (e.g., 50%) or more, the electronic device 701 may transmit
the first designated electric power through a wireless
interface.
According to various embodiments, if the connected wired charging
device 703 does not support fast charging, and if the remaining
capacity of the battery 510 is less than a designated value (e.g.,
50%), the electronic device 501 may adjust a period to transmit
wireless power. For example, the electronic device 501 may
alternately perform an operation of charging the battery 510 and an
operation of transmitting wireless power. For example, if the wired
charging device 703 does not support fast charging, and if the
remaining capacity of the battery 510 is less than a designated
value (e.g., 50%), the electronic device 501 may alternately
perform the operation of charging the battery 510 during a first
designated time and an operation of transmitting the first
designated electric power, based on the external electric power
supplied from the wired charging device 703, during a second
designated time. According to an embodiment, the first designated
time and the second designated time may be the same. According to
various embodiments, the first designated time and the second
designated time may be configured to be different from each other,
based on user input.
According to various embodiments, the electronic device 501 may
alternately perform the operation of charging the battery 510 and
the operation of transmitting wireless power, thereby charging the
battery 510 and a battery of an external electronic device (e.g.,
the external electronic device 702 in FIG. 7A or 7B).
In operation 1105, if the external device 503 is a device that is
wirelessly charged with a relatively low electric power, such as a
wearable device, the electronic device 501 according to an
embodiment may transmit wireless power, regardless of whether or
not the connected wired charging device 502 supports fast charging.
For example, if the external device 503 is a wearable device, and
if the connected wired charging device 502 supports fast charging
(e.g., AFC, QC, or PD) (based on 9V/15 W), the electronic device
501 may switch to a normal charging mode to preferentially generate
a second designated electric power (e.g., 5V/3.75 W) using the
external electric power, to transmit the generated second
designated electric power to the wearable device, and to supply the
remaining electric power of 5V/6.25 W to the battery 510. For
example, if the connected wired charging device 603 supports fast
charging, the electronic device 601 may charge the battery with
fast charging power (e.g., 9V/15 W), and if the Tx mode is
activated, the electronic device 601 may switch the charging power
for the battery from the fast charging power (e.g., 9V/15 W) to
normal charging power (e.g., 5V/10 W), may transmit part (e.g.,
5V/3.75 W) of the switched normal charging power (e.g., 5V/10 W),
as wireless power, to the wearable device 602, and may charge the
battery using the remaining electric power (e.g., 5V/6.25 W).
According to an embodiment, if the connected wired charging device
603 is a device that does not support fast charging, such as a
travel adapter (TA) with a 5V standard (e.g., 10 W power) or a USB
device {e.g., a standard downstream port (SDP) (e.g., 5 W power) or
a charging downstream port (CDP) (e.g., 7.5 W power)}, the
electronic device 601 may transmit a second designated electric
power (e.g., 5V/3.75 W) to the wearable device 602, and may supply
the system or charge the battery 510 with the remaining electric
power.
In operations 1106 and 1107, the electronic device 501 according to
an embodiment may detect the occurrence of a designated event while
transmitting a designated electric power, based on the
determination that wireless power is to be transmitted, and may
perform a designated operation in response to the designated event.
According to an embodiment, the designated event may include
detachment of the wired charging device 502, deactivation of the
wireless power Tx mode, full charging of the external device 503,
or connection of the external device 503 to the wired charging
device 502. Referring to FIG. 8, according to various embodiments,
operations 1106 and 1107 may be the same as or similar to
operations 807 and 808. Thus, a description of operations 1106 and
1107 in this document refers to the description of operations 807
and 808 in FIG. 8. According to various embodiments, the electronic
device 501 may selectively perform operation 1106 and operation
1107.
FIG. 12 is a flowchart illustrating the operation of adjusting
charging power by an electronic device, based on temperature
information, according to an embodiment of the disclosure.
Referring to FIG. 12, in operation 1201, an electronic device
(e.g., the electronic device 501 in FIG. 5) according to an
embodiment may obtain temperature information of an electronic
device 501 and/or an external device (e.g., the second electronic
device 503 in FIG. 5) while the wireless power Tx mode is active
and a designated electric power is transmitted. For example, the
electronic device 501 may include a temperature sensor (e.g., a
thermistor) (e.g., the sensor module 176 in FIG. 1), and the
temperature information of the electronic device 501 may be
obtained using the temperature sensor. According to another
embodiment, the external device 503 may also include a temperature
sensor that is the same as or similar to the temperature sensor of
the electronic device 501, and the electronic device 501 may obtain
temperature information from the external device 503. For example,
the electronic device 501 may obtain temperature information of the
external device 503 from the external device 503 using in-band
communication or out-band communication.
In operation 1202, the electronic device 501 according to an
embodiment may adjust a designated electric power wirelessly
transmitted, based at least on the temperature information.
According to an embodiment, the electronic device 501 may maintain
activation of the wireless power Tx mode even if heat is emitted
during the transmission of the wireless power. For example, while
the electronic device 501 is connected to the wired charging device
502 and transmits wireless power, the electronic device 501 may
maintain activation of the wireless power Tx mode even if the
temperature of the electronic device 501 increases.
According to another embodiment, the electronic device 501 may
differentially adjust the wireless power according to the
temperature levels of the electronic device 501. For example, the
electronic device 501 may adjust the wireless power to a relatively
low value if the temperature of the electronic device 501 and/or
the external device 503 is relatively high, and the electronic
device 501 may adjust the wireless power to a relatively high value
if the temperature of the electronic device 501 and/or the external
device 503 is relatively low.
According to another embodiment, if a first temperature of the
electronic device 501 and a second temperature of the external
device 503 are equal to or greater than a designated value, the
electronic device 501 may deactivate the wireless power Tx mode, or
may adjust the wireless power value. According to an embodiment,
the electronic device 501 may determine whether or not to adjust
the wireless power value or whether or not to activate the wireless
power Tx mode in consideration of only one of the first temperature
of the electronic device 501 and the second temperature of the
external device 503.
According to another embodiment, the electronic device 501 may
configure a first designated temperature intended to stop wired
charging, and may stop charging if the temperature of the
electronic device 501 exceeds the first designated temperature. In
addition, the electronic device 501 may configure a second
designated temperature intended to stop wireless charging (or to
deactivate the wireless power Tx mode), and may stop charging if
the temperature of the electronic device 501 exceeds the second
designated temperature. According to an embodiment, the second
designated temperature for stopping the wireless charging (or
deactivating the wireless power Tx mode) may be configured to be
higher than the first designated temperature for stopping wired
charging.
FIG. 13 is a flowchart illustrating a method of operating an
electronic device 101 according to an embodiment of the
disclosure.
Referring to FIG. 13, in operation 1301, the processor 120 of the
electronic device 101 may perform wireless charging (or wireless
power transmission), based on a first charging mode. According to
an embodiment, the processor 120, as shown in FIG. 6B or 7B, may
supply (or transmit or share) a designated electric power to (or
with) an external device (e.g., the wearable device 602 or another
electronic device 702) (hereinafter, referred to as a "second
external device") using a coil (e.g., the coil 319 in FIG. 3 or the
coil 525-1 in FIG. 5) while a wired charging device 603 or 703 {or
an external power source (e.g., TA)} (hereinafter, referred to as a
"first external device") is in connection (hereinafter, referred to
as "wireless power transmission" or "wireless charging"). For
example, the processor 120 may activate a wireless power Tx mode
(e.g., Tx mode), based on user input, and if the wireless power Tx
mode is activated, may wirelessly supply electric power to the
second external device using electric power of a battery (e.g., the
battery 510 in FIG. 5). According to an embodiment, as shown in
FIG. 6B or 7B, the first charging mode may include a mode for
providing wireless charging (e.g., a wireless power transmission
function) by supplying wireless power to a second external device
(e.g., the wearable device 602 or another electronic device 702)
using electric power of the battery 510 while the first external
device 603 or 703 is connected to the electronic device 101.
According to an embodiment, if the wireless power Tx mode is
activated while the first external device is connected, or if the
first external device is connected while the wireless power Tx mode
is active in a stand-alone state, the processor 120 may provide
wireless charging, based on the first charging mode. For example,
the processor 120 may block a wired charging path leading to the
second external device in a charging circuit (e.g., the PMIC 320 in
FIG. 3 or the charging circuit 530 in FIG. 5) of the electronic
device 101 in order to avoid bypassing of the input voltage (Vin)
of the first external device to the second external device. For
example, the processor 120 may control a switch of the wired
charging path (e.g., the first switch 532 in FIG. 5) so as to be
turned off, thereby cutting off the voltage supply to the second
external device and the battery 510, in order to prevent the
electric power of the first external device from being supplied to
the second external device, based on the first charging mode.
According to an embodiment, the processor 120 may boost (or
configure) a voltage of the battery 510 (e.g., about 5V) to (or as)
a voltage (e.g., about 7.5V) optimized for use in wireless power
sharing through a charging circuit, and may provide the same in
order for the second external device to perform stable wireless
charging.
In operation 1303, the processor 120 may determine a remaining
battery capacity {or the state of charge (SOC) or the amount of
charging} of the battery 510 of the electronic device 101 while
providing the wireless charging. According to an embodiment, the
processor 120 may identify the remaining battery capacity (SOC) in
decimal units while providing wireless charging. According to an
embodiment, the processor 120 may display the remaining battery
capacity (e.g., SOC) through a designated UI in an area (e.g., an
indicator area) of a display (e.g., the display device 160 in FIG.
1). According to an embodiment, the UI related to the remaining
battery capacity, which is displayed through the display device
160, may be displayed based on the integer part thereof, excluding
the decimal part from the remaining battery capacity.
In operation 1305, the processor 120 may switch to a second
charging mode, based on the first reference level. According to an
embodiment, the second charging mode, as shown in FIG. 6B or 7B,
may include a mode in which the battery 510 of the electronic
device 101 is charged using external electric power of the first
external device 603 or 703 while stopping transmitting wireless
power to the second external device in the state in which the first
external device 603 or 703 is connected to the electronic device
101. According to an embodiment, if the remaining battery capacity
reaches the first reference level while providing wireless power to
the first external device, based on the first charging mode, in the
state in which the wireless power Tx mode is activated during the
connection of the first external device or in which the first
external device is connected while the wireless power Tx mode is
active in a stand-alone state, the processor 120 may switch from
the first charging mode to the second charging mode for charging
the battery 510 using the external electric power of the first
external device. According to an embodiment, the processor 120 may
control a switch of the wired charging path (e.g., the first switch
532 in FIG. 5) so as to be turned on in a charging circuit (e.g.,
the PMIC 320 in FIG. 3 or the charging circuit 530 in FIG. 5) of
the electronic device 101, based on the second charging mode,
thereby providing the electric power from the first external device
to the battery 510. According to an embodiment, the processor 120
may maintain the wireless charging connection (e.g., a ping
connection state) with the second external device when switching to
the second charging mode. For example, the processor 120 may
release the blocking of the wired charging path, thereby providing
wired charging, and may maintain the wireless connection with the
second external device by minimizing the electric power provided to
the second external device, instead of completely stopping the
wireless charging with respect to the second external device. For
example, the processor 120 may maintain the wireless connection
with the second external device by continuously providing a
designated electric power (e.g., the minimum electric power for
maintaining the connection) to the second external device.
According to an embodiment, the first reference level may include,
for example, a first specific value (e.g., "1") below a decimal
point (e.g., a decimal part) of the remaining battery capacity for
switching from the first charging mode to the second charging mode.
For example, the first reference level may include a reference
value for initiating a wired charging operation for the battery 510
in the wireless charging operation for the second external device.
According to an embodiment, if the remaining battery capacity is
identified in percentiles, the processor 120 may determine to start
a wired charging operation if a decimal part of the remaining
battery capacity becomes every M.1% (M is a natural number of 99 or
less).
In operation 1307, the processor 120 may perform wired charging,
based on the second charging mode. According to an embodiment, as
shown in FIG. 6B or 7B, the processor 120 may supply a designated
electric power to the battery 510 while the first external device
is connected (hereinafter, referred to as "wired charging"). For
example, the processor 120 may perform control such that the
battery 510 is charged using the external electric power of the
first external device while activating a wireless power Tx mode
(e.g., Tx mode). According to an embodiment, the processor 120 may
minimize the external electric power provided to the second
external device during the wired charging, thereby maintaining the
wireless connection between the electronic device 101 and the
second external device. For example, the processor 120 may maintain
the wireless charging connection with the second external device
even while the wired charging of the battery 510 is performed,
thereby eliminating the inconvenience of a reconnection operation
for wireless charging in repeating the wired charging/wireless
charging.
In operation 1309, the processor 120 may determine the remaining
battery capacity of the battery 510 of the electronic device 101
while providing wired charging. According to an embodiment, the
processor 120 may identify the remaining battery capacity (SOC) of
the electronic device 101 in decimal units while providing wired
charging.
In operation 1311, the processor 120 may switch to the first
charging mode, based on a second reference level. According to an
embodiment, if the remaining battery capacity reaches a second
reference level while providing wired charging to the battery 510,
based on the second charging mode, in the state in which the first
external device is connected, the processor 120 may switch from the
second charging mode to the first charging mode for supplying
wireless power to the second external device using the electric
power of the battery 510. For example, the processor 120 may block
a wired charging path leading to the second external device in a
charging circuit (e.g., the PMIC 320 in FIG. 3 or the charging
circuit 530 in FIG. 5) of the electronic device 101 in order to
avoid bypassing of the input voltage of the first external device
to the second external device. According to an embodiment, the
second reference level may include, for example, a second specific
value (e.g., "8") below a decimal point (e.g., a decimal part) of
the remaining battery capacity for switching from the second
charging mode to the first charging mode. For example, the second
reference level may include a reference value for initiating the
wireless charging operation for the second external device in the
wired charging operation for the battery 510. According to an
embodiment, if the remaining battery capacity is identified in
percentiles, the processor 120 may determine to start a wireless
charging operation (or a wireless power transmission operation) if
a decimal part of the remaining battery capacity becomes every M.8%
(M is a natural number of 99 or less). According to an embodiment,
the second reference level may be configured such that the
remaining battery capacity of the battery 510 by wired charging is
"integer part increment {e.g., about 1*n % (n is a natural number
of about 99 or less)}+decimal part increment {e.g., about 0.1*m %
(m is a natural number of about 9 or less)".
In operation 1313, the processor 120 may perform wireless charging,
based on the first charging mode. For example, the processor 120
may perform the operation corresponding to operation 1301, and may
repeat operations subsequent to operation 1301.
According to an embodiment, the electronic device 101 may
alternately perform wired charging for charging the battery 510 of
the electronic device 101 and wireless charging for supplying
wireless power to the second external device (e.g., the external
device in FIG. 6B or 7B) (e.g., the wearable device 602 or the
smart phone 702) in the state in which a first external device
(e.g., the wired charging device 603 or 703 in FIG. 6B or 7B) (or a
wired charging device) is connected to the electronic device 101,
thereby eliminating instability and/or power loss of wireless
charging of the second external device due to bypass of the
external electric power of the first external device.
According to an embodiment, the electronic device 101, as shown in
FIG. 13, may supply wireless power until the remaining battery
capacity in the percentile provided to the user through a UI is not
changed, based on the decimal part of the remaining battery
capacity of the electronic device 101, when executing a wireless
power sharing function based on the first charging mode, thereby
charging the second external device. According to an embodiment,
the electronic device 101 may display the remaining battery
capacity (e.g., the remaining battery capacity) in an area of the
display device 160 using a designated UI, and the UI related to the
displayed remaining battery capacity may be expressed as an integer
part thereof, excluding a decimal part from the remaining battery
capacity.
According to an embodiment, as shown in FIG. 13, the electronic
device 101 may stop the wireless charging operation and perform the
wired charging operation when executing a function of charging the
battery 510, based on the second charging mode, and the electronic
device 101 may maintain the wireless connection with the second
external device during the wired charging by minimizing the
external electric power provided to the second external device,
instead of completely stopping the wireless charging between the
electronic device 101 and the second external device. According to
an embodiment, the electronic device 101 may stop the wired
charging for the battery 510 to then start the wireless charging
for the second external device at the time, for example, at which
the remaining battery capacity of the battery 510 reaches, for
example, "integer part increment (e.g., 1*n %)+decimal part
increment (e.g., 0.1*m %)" or more.
According to an embodiment, the electronic device 101 may repeat
the operations shown in FIG. 13, thereby increasing the remaining
battery capacity of the battery 510 through wired charging and also
sharing wireless power with the second external device. According
to an embodiment, the electronic device 101 may alternately perform
the wired charging operation related to charging of the battery 510
and the wireless charging operation related to sharing of wireless
power with the second external device, and the sequence (e.g.,
priority) of the wired charging operation and the wireless charging
operation as shown in FIG. 13 may vary. According to an embodiment,
the operations shown in FIG. 13, for example, switching between the
wireless power transmission (wireless charging) operation based on
the first charging mode and the wired charging operation based on
the second charging mode may be performed repeatedly or
periodically until designated conditions are satisfied, and if the
designated conditions are satisfied, may be terminated. For
example, if the remaining battery capacity of the battery 510 is
lowered below a designated level, if the battery 510 is fully
charged, or if the wireless power receiving device (e.g., the
second external device) is fully charged, the electronic device 101
may terminate the switching operation.
FIG. 14 is a flowchart illustrating a method of operating an
electronic device 101 according to an embodiment of the
disclosure.
Referring to FIG. 14, in operation 1401, the processor 120 of the
electronic device 101 may detect initiation of a wireless power Tx
mode (e.g., Tx mode). According to an embodiment, the initiation of
the wireless power Tx mode may be activated, for example, based on
user input. According to an embodiment, the user input may include
a user's touch input through a display (e.g., the display device
160 in FIG. 1), manipulation of physical buttons provided on the
outer side of a housing (e.g., the housing 405 in FIG. 4), or an
approach of an external device (e.g., the wearable device 602 in
FIG. 6B or another electronic device 702 in FIG. 7B) to the
electronic device 101. For example, the user may select an object
(e.g., an icon in an inactive state) for activating the wireless
power Tx mode, which is disposed at a designated location in a
settings menu or a home screen, and the processor 120, based on the
selection of the object, may determine the initiation of the
wireless power Tx mode. According to an embodiment, the processor
120 may switch the object in the inactive state to an active state,
and may display the same, based on the selection of the object.
In operation 1403, the processor 120 may determine whether or not
the electronic device 101 is in a stand-alone state. According to
an embodiment, the stand-alone state may denote the state in which
the electronic device 101 is not connected to the wired charging
device. For example, the processor 120 may determine whether or not
the wired charging device is connected to the electronic device
101, based on the initiation of the wireless power Tx mode.
If it is determined that the electronic device 101 is in the
stand-alone state in operation 1403 (e.g., "YES" in operation
1403), the processor 120 may perform a wireless charging operation
in operation 1405. According to an embodiment, if the wireless
power Tx mode is activated in the stand-alone state, the processor
120 may generate a designated electric power using the electric
power of the battery 510, and may transmit the designated electric
power to an external device through a coil (e.g., the coil 525-1 in
FIG. 5) (e.g., wireless power transmission). According to an
embodiment, for example, if the remaining battery capacity of the
battery 510 is lowered below a designated level, or if the wireless
power receiving device (e.g., the second external device) is fully
charged during the wireless charging operation, the processor 120
may stop the wireless charging operation.
If it is determined that the electronic device 101 is not in the
stand-alone state operation 1403 (e.g., "NO" in operation 1403),
for example, if the wired charging device is in the connected state
with the electronic device 101, the processor 120 may determine a
remaining battery capacity (e.g., SOC) of the battery 510 in
operation 1407. According to an embodiment, the processor 120 may
identify the remaining battery capacity in decimal units. According
to an embodiment, the processor 120 may display the remaining
battery capacity (e.g., remaining battery capacity) through a
designated UI in an area (e.g., an indicator area) of the display
device 160. According to an embodiment, the UI related to the
remaining battery capacity, which is displayed through the display
160, may be expressed as an integer part of the remaining battery
capacity, excluding a decimal part therefrom. According to an
embodiment, the remaining battery capacity may be displayed as a
positive integer (or a natural number) in percentiles.
In operation 1409, the processor 120 may determine whether or not
the remaining battery capacity is within a designated reference
range, based on the determined remaining battery capacity.
According to an embodiment, the reference range may include, for
example, a range value for determining an initiation mode of the
wireless power Tx mode. For example, the processor 120 may
determine whether or not to start the reference range-based
wireless power Tx mode, based on the first charging mode or the
second charging mode. According to an embodiment, the reference
range may include, for example, at least a specific value within a
range greater than a first reference level (e.g., a reference value
for initiating a wired charging operation) and less than or equal
to a second reference level (e.g., a reference value for initiating
a wireless charging operation). According to an embodiment, the
first reference level may include a first specific value (e.g.,
"1") {e.g., M.1% (M is a natural number of 99 or less)} below a
decimal point (e.g., a decimal part) of the remaining battery
capacity for switching from the first charging mode to the second
charging mode. According to an embodiment, the second reference
level may include a second specific value (e.g., "8") {e.g., M.8%
(M is a natural number of 99 or less)} below a decimal point (e.g.,
a decimal part) of the remaining battery capacity for switching
from the second charging mode to the first charging mode. According
to an embodiment, the second reference level may be configured such
that the remaining battery capacity of the battery 510 by wired
charging is "integer part increment (e.g., about 1*n %)+decimal
part increment (e.g., about 0.1*m %)". According to an embodiment,
the reference range may include a range of "2 to 8" greater than
the first reference level and less than or equal to the second
reference level, and if the remaining battery capacity (e.g., the
value of the decimal part) is included in any one of "2 to 8", the
processor 120 may determine that the remaining battery capacity is
within the reference range.
If the remaining battery capacity is within the reference range in
operation 1409 (e.g., "YES" in operation 1409), the processor 120
may perform wireless charging, based on the first charging mode for
charging the external device in operation 1411. According to an
embodiment, if the remaining battery capacity is within the
reference range, the processor 120 may provide wireless charging,
based on the first charging mode, at the time at which the wireless
power Tx mode is initiated.
In operation 1413, the processor 120 may determine a remaining
battery capacity of the battery 510 while providing wireless
charging. According to an embodiment, the processor 120 may
identify the remaining battery capacity (SOC) in decimal units
while providing wireless charging.
In operation 1415, the processor 120 may determine whether or not
the remaining battery capacity reaches a first reference level,
based on the determined remaining battery capacity. For example,
the processor 120 may monitor whether or not a specific value below
the decimal point of the remaining battery capacity reaches "1" of
the first reference level.
If the remaining battery capacity does not reach the first
reference level in operation 1415 (e.g., "NO" in operation 1415),
the processor 120 may proceed to operation 1413, thereby performing
operation 1413 and operations subsequent thereto.
If the remaining battery capacity reaches the first reference level
in operation 1415 (e.g., "YES" in operation 1415), the processor
120 may perform wired charging, based on switching to the second
charging mode in operation 1417. According to an embodiment, the
processor 120 may stop transmitting wireless power to an external
device, and may charge the battery 510 of the electronic device 101
using the external electric power of a wired charging device in the
state in which the wired charging device is connected to the
electronic device 101. According to an embodiment, if the remaining
battery capacity reaches the first reference level while providing
wireless charging to the external device, based on the first
charging mode, the processor 120 may switch from the first charging
mode to the second charging mode for charging the battery 510 using
the external electric power of the wired charging device. According
to an embodiment, the processor 120 may maintain the wireless
charging connection (e.g., a ping connection) with an external
device when switching to the second charging mode. According to an
embodiment, for example, if the battery 510 of the electronic
device 101 is fully charged while performing the wired charging
operation, the processor 120 may stop the wired charging
operation.
If the remaining battery capacity is not within the reference range
in operation 1409 (e.g., "NO" in operation 1409), the processor 120
may perform wired charging, based on the second charging mode for
charging the battery 510 in operation 1421. According to an
embodiment, if the remaining battery capacity is not within the
reference range, the processor 120 may provide wired charging,
based on the second charging mode, at the time at which the
wireless power Tx mode is initiated.
In operation 1423, the processor 120 may determine a remaining
battery capacity of the battery 510 while providing wired charging.
According to an embodiment, the processor 120 may identify the
remaining battery capacity (SOC) in decimal units while providing
wired charging.
In operation 1425, the processor 120 may determine whether or not
the remaining battery capacity reaches a second reference level,
based on the determined remaining battery capacity. For example,
the processor 120 may monitor whether or not a specific value below
the decimal point of the remaining battery capacity reaches "8" of
the second reference level.
If the remaining battery capacity does not reach the second
reference level in operation 1425 (e.g., "NO" in operation 1425),
the processor 120 may proceed to operation 1423, thereby performing
operation 1423 and operations subsequent thereto.
If the remaining battery capacity reaches the second reference
level in operation 1425 (e.g., "YES" in operation 1425), the
processor 120 may perform wireless charging, based on switching to
the first charging mode, in operation 1427. According to an
embodiment, the processor 120 may stop charging the battery 510,
and may supply a designated wireless power to an external device
using the external electric power of the wired charging device in
the state in which the wired charging device is connected to the
electronic device 101. According to an embodiment, if the remaining
battery capacity reaches the second reference level while providing
wired charging, based on the second charging mode, the processor
120 may switch from the second charging mode to the first charging
mode for supplying wireless power to an external device using the
external electric power of the wired charging device. According to
an embodiment, since the wireless charging connection (e.g., a ping
connection) with the external device is maintained when switching
to the first charging mode, the processor 120 may immediately
perform wireless charging without a separate operation for
connection with the external device. According to an embodiment,
for example, if the remaining battery capacity of the electronic
device 101 is lowered below a designated level, or if the wireless
power receiving device (e.g., the external device) is fully charged
during the wireless charging operation, the processor 120 may
terminate the wireless charging operation.
According to an embodiment, the processor 120 may perform a
different charging operation, based at least on a condition in
which the battery 510 of the electronic device 101 and/or the
wireless power receiving device (e.g., an external device) is fully
charged. For example, if at least one element (e.g., the battery
510 or the wireless power receiving device) is fully charged, the
processor 120 may stop the switching operation. According to an
embodiment, the processor 120 may switch the charging operation
between the first charging mode and the second charging mode until
at least one element is fully charged, and to this end, the
processor 120 may check the remaining battery capacity repeatedly
or periodically. According to an embodiment, the operations shown
in FIG. 14, for example, the switching between the wireless power
transmission (wireless charging) operation and the wired charging
operation may be performed repeatedly or periodically until
designated conditions are satisfied, and if the designated
conditions are satisfied, may be terminated. For example, if the
remaining battery capacity of the electronic device 101 is lowered
below a designated level, if the battery 510 of the electronic
device 110 is fully charged, or if the wireless power receiving
device (e.g., the second external device) is fully charged, the
electronic device 101 may terminate the switching operation.
FIG. 15 is a diagram illustrating an example of an operation
scenario of performing wireless charging and wired charging in an
electronic device 151 according to an embodiment of the
disclosure.
As shown in FIG. 15, FIG. 15 may illustrate an example of an
operation of alternately performing a wireless charging operation
(e.g., a wireless power transmission operation for charging an
external device) and a wired charging operation (e.g., an operation
of charging the battery 510 of the electronic device 151), based on
the remaining battery capacity of the battery 510 of the electronic
device 151, in the state in which a wired charging device is
connected to the electronic device 151. According to an embodiment,
a block 1510, a block 1520, a block 1530, a block 1540, and a block
1550 in FIG. 15 may denote, for example, remaining battery
capacities (e.g., the remaining battery capacity) depending on the
charging state of the battery 510 (e.g., the degree of progression
according to the charging time) based on a time axis.
Referring to FIG. 15, if the remaining battery capacity is within a
designated reference range as shown in the example of the block
1510 (e.g., 30.5%) (e.g., the value of a decimal part below a
decimal point is greater than a first reference level and is less
than or equal to a second reference level) when initiating a
wireless power Tx mode (e.g., Tx mode), the electronic device 151
may perform a wireless charging operation in operation 1501. For
example, in the case where a user wirelessly charges an external
device (e.g., a smart watch or another electronic device) using the
electronic device 101 while the electronic device 101 is wiredly
charged, the electronic device 101 may detect the external device
at the remaining battery capacity of, for example, 30.5% so that
the wireless power Tx mode may be activated. According to an
embodiment, the electronic device 101 may start wireless charging,
based on the remaining battery capacity of 30.5%, may block the
wired charging path to the battery 510, based on wireless charging,
and may provide wireless charging power to the external device
until the remaining battery capacity reaches 30.1% as shown in the
example of block 1520.
According to an embodiment, if the remaining battery capacity
reaches the first reference level as shown in block 1520 (e.g.,
30.1%), the electronic device 101 may perform a wired charging
operation in operation 1503. For example, if the remaining battery
capacity reaches the first reference level while providing wireless
charging, the electronic device 101 may stop the wireless charging
operation, and may then perform a wired charging operation.
According to an embodiment, the electronic device 101 may continue
to execute the wired charging operation according to operation 1503
until the time at which the remaining battery capacity reaches the
second reference level (e.g., 31.8% in the block 1530). For
example, the electronic device 101 may stop the wired charging
operation, and may then start a wireless charging operation again
at the time at which, for example, the remaining battery capacity
of the battery 510 by the wired charging reaches "percentile
increment (e.g., 1*n %)+decimal part increment (e.g., 0.1*m %)" or
more (e.g., 31.8% in the block 1530 increased from 30.1% in the
block 1520 by 1.7%).
According to an embodiment, if the battery 510 is charged to 31.8%
in the block 1530 through the wired charging, the electronic device
101 may stop the wired charging operation by blocking the wired
charging path again in operation 1505, and may resume the wireless
charging operation, thereby providing wireless power to the
external device until the remaining battery capacity reaches 31.1%
(e.g., the first reference level) in the block 1540. According to
an embodiment, if the remaining battery capacity reaches the first
reference level as shown in block 1540 (e.g., 31.1%), the
electronic device 101 may perform a wired charging operation in
operation 1507. For example, if the remaining battery capacity
reaches the first reference level while providing the wireless
charging, the electronic device 101 may stop the wireless charging
operation, and may perform the wired charging operation. According
to an embodiment, the electronic device 101 may continue the wired
charging operation according to operation 1507 until the time at
which the remaining battery capacity reaches a second reference
level (e.g., 32.8% in the block 1550). For example, the electronic
device 101 may continue the wired charging until the time at which
the remaining battery capacity of the battery 510 by the wired
charging reaches "percentile increment (e.g., 1*n %)+decimal part
increment (e.g., 0.1*m %)" or more (e.g., 32.8% in the block 1550
increased from 31.1% in the block 1540 by 1.7%). According to an
embodiment, the processor 120 may perform a different charging
operation, based at least on a condition in which the battery 510
of the electronic device 101 and/or the wireless power receiving
device (e.g., an external device) is fully charged. For example, if
at least one element (e.g., the battery 510 or the wireless power
receiving device) is fully charged, the processor 120 may stop the
switching operation. According to an embodiment, the processor 120
may switch the charging operation between the first charging mode
and the second charging mode until at least one element is fully
charged, and to this end, the processor 120 may check the remaining
battery capacity repeatedly or periodically.
As shown in FIG. 15, the electronic device 101 may repeat the
wireless charging operation and the wired charging operation as
shown in FIG. 15 to alternately charge the battery 510 and the
external device. According to an embodiment, the user is also able
to stably charge an external device through wireless power sharing
without experiencing a situation in which the remaining battery
capacity of the electronic device 101 drops, for example, from 30%
to 29%.
FIG. 16A illustrates an example of a charging operation graph in
wired charging and wireless charging according to an embodiment of
the disclosure, and FIG. 16B illustrates an example of a charging
operation graph in wired charging and wireless charging according
to an embodiment of the disclosure.
According to an embodiment, the electronic device 101 may separate
and perform a wired charging operation in relation to the charging
of the battery 510 and a wireless charging operation in relation to
wireless power transmission to an external device, based on the
remaining battery capacity.
According to an embodiment, reference levels (e.g., a first
reference level and a second reference level) for a wired charging
period and a wireless charging period of the electronic device 101
may be variously determined (or configured) in consideration of the
priority of a wired charging function for the battery 510 and a
wireless charging function for the external device. According to an
embodiment, the electronic device 101 may separate the wired
charging period and the wireless charging period, based on the
remaining battery capacity, and may adaptively change and operate
the wired charging period and the wireless charging period, based
on the priority.
Referring to FIG. 16A, according to an embodiment, in the case
where the wireless charging function for the external device has a
higher priority, the electronic device 101, may proceed with the
wired charging of the battery 510 by "integer part increment
(1%)+decimal part increment (0.n %)" (e.g., an increment of about
1.9%) of the remaining battery capacity, and may then wirelessly
charge the external device by a decrement of about 0.8% to 0.9% of
the remaining battery capacity of the battery 510. In this case, a
fast swap function may speed up the charging of the external
device.
Referring to FIG. 16B, according to an embodiment, in the case
where the wired charging function for the battery 510 has a higher
priority, the electronic device 101, as shown in FIG. 16B, may
proceed with the wired charging of the battery 510 by "integer part
increment (2%)+decimal part increment (0.n %)" (e.g., an increment
of about 4.9%) of the remaining battery capacity, and may then
wirelessly charge the external device by a decrement of about 0.8%
to 0.9% of the remaining battery capacity of the battery 510. In
this case, a relatively slow swap function may speed up the
charging of the battery 510.
For example, comparing an increment graph 1610 of the battery 510
in the wired charging mode in FIG. 16A with an increment graph 1630
of the battery 510 in the wired charging mode in FIG. 16B, the
charging speed (e.g., an increment) of the battery 510 per hour may
be higher in FIG. 16B (e.g., about 1.9% increment in FIG. 16A and
about 4.9% increment in FIG. 16B). According to an embodiment,
comparing a decrement graph 1620 of the battery 510 in the wireless
charging mode in FIG. 16A with a decrement graph 1640 of the
battery 510 in the wireless charging mode in FIG. 16B, a
discharging speed of the battery 510 per hour (e.g., a decrement)
(e.g., about 0.8-0.9% decrement in FIGS. 16A and 16B) may make no
difference therebetween, based on the same level configuration
(e.g., about 0.8-0.9% decrement), regardless of the priority of a
wired charging function or a wired charging function. According to
an embodiment, in the case where the discharging speed (e.g., a
decrement) of the battery 510 per hour is configured as different
levels (e.g., a decrement of about 0.8 to 0.9% and a decrement of
about 0.6 to 0.7%) according to the priority of a wireless charging
function or a wired charging function, the discharging speed per
hour in each period may differ.
FIG. 17 is a flowchart illustrating a method of operating an
electronic device 101 according to an embodiment of the
disclosure.
Referring to FIG. 17, in operation 1701, the processor 120 of the
electronic device 101 may initiate a wireless power Tx mode (e.g.,
a Tx mode). According to an embodiment, the processor 120, as shown
in FIG. 6B or 7B, may supply (or transmit or share) a designated
electric power to (or with) an external device (e.g., the wearable
device 602 or another electronic device 702) (hereinafter, referred
to as a "second external device") using a coil (e.g., the coil 319
in FIG. 3 or the coil 525-1 in FIG. 5) while a wired charging
device 603 or 703 {or a wired charging device (e.g., a TA)}
(hereinafter, referred to as a "first external device") is in
connection (hereinafter, referred to as "wireless power
transmission" or "wireless charging"). For example, the processor
120 may wirelessly supply electric power to the second external
device using electric power of a battery (e.g., the battery 510 in
FIG. 5). According to an embodiment, the processor 120 may block a
wired charging path from the first external device to the second
external device in a charging circuit (e.g., the PMIC 320 in FIG. 3
or the charging circuit 530 in FIG. 5) of the electronic device 101
in order to avoid bypassing of the input voltage (Vin) of the first
external device to the second external device. For example, in
order to prevent the electric power of the first external device
from being supplied to the second external device, the processor
120 may control a switch of the wired charging path (e.g., the
first switch 532 in FIG. 5) so as to be turned off, thereby
blocking the wired charging path between the first external device
and the electronic device 101, and may control a switch of the
wireless charging path (e.g., the second switch 534 in FIG. 5) so
as to be turned on, thereby wirelessly supplying a designated power
to the second external device, based on the electric power of the
battery 510. According to an embodiment, the processor 120 may
configure a voltage of the battery 510 (e.g., about 5V) to a
voltage (e.g., about 7.5V) optimized for use in wireless power
sharing through a charging circuit, and may provide the same in
order for the second external device to perform stable wireless
charging.
In operation 1703, the processor 120 may determine a remaining
battery capacity (e.g., SOC) of the battery 510 of the electronic
device 101 while providing the wireless charging. According to an
embodiment, the processor 120 may check the remaining battery
capacity in decimal units while providing wireless charging.
In operation 1705, the processor 120 may determine whether or not
the remaining battery capacity reaches a first reference level,
based on the remaining battery capacity. According to an
embodiment, the processor 120 may monitor a decimal part of the
remaining capacity of the battery 510 while providing wireless
charging, and, based on the monitoring result, may determine
whether or not the decimal part of the remaining capacity of the
battery 510 reaches a designated value (e.g., a first reference
level). For example, the processor 120 may determine whether or not
a specific value below the decimal point of the remaining battery
capacity reaches "1" of the first reference level.
If the remaining battery capacity does not reach the first
reference level in operation 1705 (e.g., "NO" in operation 1705),
the processor 120 may proceed to operation 1703, thereby repeatedly
or periodically performing operation 1703 and operations subsequent
thereto.
If the remaining battery capacity reaches the first reference level
in operation 1705 (e.g., "YES" in operation 1705), the processor
120 may stop the wireless power transmission operation in operation
1707. According to an embodiment, the processor 120 may stop
transmitting wireless power to the second external device in the
state in which the first external device is connected to the
electronic device 101. According to an embodiment, the processor
120 may stop transmitting wireless power to the second external
device using the electric power of the battery 510. According to an
embodiment, the processor 120 may control a charging circuit (e.g.,
the PMIC 320 in FIG. 3 or the charging circuit 530 in FIG. 5) of
the electronic device 101 so as to maintain the switch of the
wireless charging path (e.g., the second switch 534 in FIG. 5) to
be turned on, thereby maintaining the wireless charging connection
(e.g., a ping connection) with the second external device by
transmitting a minimum power (e.g., about 1V, about 2V, or about
3V) to the second external device. According to another embodiment,
the processor 120 may block the wireless charging path from the
charging circuit (e.g., the PMIC 320 in FIG. 3 or the charging
circuit 530 in FIG. 5) in the electronic device 101 to the second
external device in order to prevent the electric power of the
battery 510 from being supplied to the second external device. For
example, the processor 120 may turn off a switch of the wireless
charging path (e.g., the second switch 534 in FIG. 5) to prevent
the electric power of the battery 510 from being supplied to the
second external device, thereby blocking the wireless charging path
between the second external device and the electronic device
101.
In operation 1709, the processor 120 may connect a charging path of
the first external device. According to an embodiment, if the
remaining battery capacity reaches the first reference level while
providing wireless charging to the second external device, based on
the first charging mode, the processor 120 may perform control such
that a switch of the wired charging path (e.g., the first switch
532 in FIG. 5) from the first external device to the battery 510 in
the charging circuit (e.g., the PMIC 320 in FIG. 3 or the charging
circuit 530 in FIG. 5) of the electronic device 101 is turned
on.
In operation 1711, the processor 120 may charge the battery 510 by
the first external device. According to an embodiment, as shown in
FIG. 6B or 7B, the processor 120 may supply a designated electric
power to the battery 510 while the first external device is
connected (hereinafter, referred to as "wired charging"). According
to an embodiment, the processor 120 may initiate a wired charging
operation for the battery 510 while maintaining a wireless charging
connection (e.g., a ping connection) with the second external
device. According to an embodiment, the processor 120 may stop
transmitting wireless power to the second external device, and may
charge the battery 510 of the electronic device 101 using the
external electric power of the first external device in the state
in which the first external device is connected to the electronic
device 101. In operation 1713, the processor 120 may determine
whether or not the remaining battery capacity reaches a second
reference level while providing the wired charging (e.g., while
charging the battery 510 using the external electric power of the
first external device). According to an embodiment, the processor
120 may check the remaining battery capacity (e.g., SOC) of the
battery 510 in decimal units while providing wired charging, and
may determine whether or not the remaining battery capacity reaches
the second reference level. According to an embodiment, the
processor 120 may monitor a decimal part of the remaining capacity
of the battery 510 while providing wired charging, and, based on
the monitoring result, may determine whether or not the decimal
part of the remaining capacity of the battery 510 reaches a
designated value (e.g., the second reference level). For example,
the processor 120 may determine whether or not a specific value
below the decimal point of the remaining battery capacity reaches
"8" of the second reference level.
If the remaining battery capacity does not reach the second
reference level in operation 1713 (e.g., "NO" in operation 1713),
the processor 120 may proceed to operation 1711, thereby repeatedly
or periodically performing operation 1711 and operations subsequent
thereto.
If the remaining battery capacity reaches the second reference
level in operation 1713 (e.g., "YES" in operation 1713), the
processor 120 may block the charging path of the first external
device in operation 1715. For example, the processor 120 may
wirelessly supply electric power to the second external device
using the electric power of the battery 510. According to an
embodiment, the processor 120 may block a wired charging path from
the first external device to the second external device in a
charging circuit (e.g., the PMIC 320 in FIG. 3 or the charging
circuit 530 in FIG. 5) of the electronic device 101 in order to
avoid bypassing of the input voltage (Vin) of the first external
device to the second external device. For example, the processor
120 may turn off a switch of the wired charging path (e.g., the
first switch 532 in FIG. 5) to prevent the electric power of the
first external device from being supplied to the second external
device.
In operation 1717, the processor 120 may block the wired charging
path between the first external device and the electronic device
101, and may maintain the switch of the wireless charging path
(e.g., the second switch 534 in FIG. 5) to be turned on, thereby
performing wireless charging of supplying a designated electric
power to the second external device, based on electric power of the
battery 510.
According to an embodiment, the operations shown in FIG. 17, for
example, the switching between the wireless power transmission
(wireless charging) operation and the wired charging operation may
be performed repeatedly or periodically until designated conditions
are satisfied, and if the designated conditions are satisfied, may
be terminated. For example, if the remaining battery capacity of
the battery 510 is lowered below a designated level, if the battery
510 is fully charged, or if the wireless power receiving device is
fully charged, the electronic device 101 may terminate the
switching operation.
FIG. 18 is a flowchart illustrating a method of operating an
electronic device 101 according to an embodiment of the
disclosure.
Referring to FIG. 18, in operation 1801, the processor 120 of the
electronic device 101 may perform wireless charging, based on a
first charging mode. According to an embodiment, the processor 120,
as shown in FIG. 6B or 7B, may supply (or transmit or share) a
designated electric power to (or with) a second external device
(e.g., the wearable device 602 or another electronic device 702)
using a coil (e.g., the coil 319 in FIG. 3 or the coil 525-1 in
FIG. 5) while a first external device (e.g., the wired charging
device 603 or 703) is connected (hereinafter, referred to as
"wireless power transmission" or "wireless charging"). For example,
the processor 120 may perform a wireless charging operation of
supplying wireless power to the second external device using
electric power of the battery 510.
In operation 1803, the processor 120 may determine a remaining
battery capacity (e.g., SOC) of the battery 510 of the electronic
device 101 while providing the wireless charging. According to an
embodiment, the processor 120 may check the remaining battery
capacity in decimal units while providing wireless charging.
In operation 1805, the processor 120 may determine whether or not
the remaining battery capacity reaches a first reference level,
based on the remaining battery capacity. For example, the processor
120 may determine whether or not a specific value below the decimal
point of the remaining battery capacity reaches "1" of the first
reference level.
If the remaining battery capacity does not reach the first
reference level in operation 1805 (e.g., "NO" in operation 1805),
the processor 120 may proceed to operation 1801, thereby repeatedly
or periodically performing operation 1801 and operations subsequent
thereto.
If the remaining battery capacity reaches the first reference level
in operation 1805 (e.g., "YES" in operation 1805), the processor
120 may determine a switching reference level for switching the
charging mode in operation 1807. According to an embodiment, the
switching reference level may include, for example, a reference
value for switching from the first charging mode to the second
charging mode. For example, the switching reference level may
include a remaining battery capacity for determining, if the
remaining battery capacity reaches the first reference level,
whether or not to maintain the wireless charging according to the
first charging mode or whether or not to switch to the wired
charging according to the second charging mode, based on the
remaining battery capacity. According to an embodiment, the
switching reference level may be configured as a designated value
of the remaining capacity of the battery 510 (e.g., the SOC of N %
or more) (for example, 50%, 55%, 60%, 75% or more).
In operation 1809, the processor 120 may determine whether or not
the remaining battery capacity is greater than or equal to the
switching reference level. For example, the processor 120 may
compare the remaining battery capacity with a designated switching
reference level, and may identify whether or not the remaining
battery capacity is greater than or equal to the designated
switching reference level.
If the remaining battery capacity is greater than or equal to the
switching reference level in operation 1809 (e.g., "YES" in
operation 1809), the processor 120 may proceed to operation 1801,
thereby performing operation 1801 and operations subsequent
thereto. For example, even in the case where the remaining battery
capacity reaches the first reference level, if the remaining
battery capacity is greater than or equal to the switching
reference level, the processor 120 may maintain the wireless
charging mode. For example, if the remaining capacity of the
battery 510 is greater than or equal to a designated value, the
processor 120 may ignore the first reference level, and may
maintain the wireless charging.
If the remaining battery capacity is less than the switching
reference level in operation 1809 (e.g., "NO" in operation 1809),
the processor 120 may switch to the second charging mode in
operation 1811.
In operation 1813, the processor 120 may perform wired charging
based on the second charging mode. According to an embodiment, the
processor 120 may stop transmitting wireless power to the second
external device, and may charge the battery 510 by supplying a
designated electric power thereto using the external electric power
of the first external device in the state in which the first
external device is connected to the electronic device 101.
According to an embodiment, the processor 120 may maintain the
wireless charging connection (e.g., a ping connection) with the
second external device when switching to the second charging
mode.
In operation 1815, the processor 120 may determine a remaining
battery capacity (e.g., SOC) of the battery 510 of the electronic
device 101 while providing wired charging. According to an
embodiment, the processor 120 may identify the remaining battery
capacity in decimal units while providing wired charging.
In operation 1817, the processor 120 may determine whether or not
the remaining battery capacity reaches a second reference level,
based on the remaining battery capacity. For example, the processor
120 may monitor whether or not a specific value below the decimal
point of the remaining battery capacity reaches "8" of the second
reference level.
If the remaining battery capacity does not reach the second
reference level in operation 1817 (e.g., "NO" in operation 1817),
the processor 120 may proceed to operation 1815, thereby performing
operation 1815 and operations subsequent thereto.
If the remaining battery capacity reaches the second reference
level in operation 1817 (e.g., "YES" in operation 1817), the
processor 120 may switch to the first charging mode in operation
1819. According to an embodiment, the processor 120 may stop the
wired charging for the battery 510, and may perform the wireless
charging for the second external device, based on the switching to
the first charging mode. According to an embodiment, the processor
120 may perform control so as to stop the operation of charging the
battery 510 and so as to supply a designated wireless power to the
second external device using the external electric power of the
first external device in the state in which the first external
device is connected to the electronic device 101. According to an
embodiment, since the wireless charging connection (e.g., a ping
connection) with the second external device is maintained when
switching to the first charging mode, the processor 120 may
immediately perform wireless charging without a separate operation
for connection with the second external device.
According to an embodiment, the operations shown in FIG. 18, for
example, the switching between the wireless power transmission
(wireless charging) operation and the wired charging operation may
be performed repeatedly or periodically until designated conditions
are satisfied, and if the designated conditions are satisfied, may
be terminated. For example, if the remaining battery capacity of
the battery 510 is lowered below a designated level, if the battery
510 is fully charged, or if the wireless power receiving device is
fully charged, the electronic device 101 may terminate the
switching operation.
FIG. 19 is a flowchart illustrating a method of operating an
electronic device 101 according to an embodiment of the
disclosure.
FIG. 20 illustrates an example of adaptively configuring a
reference level, based on a remaining battery capacity in an
electronic device 101 according to an embodiment of the
disclosure.
According to an embodiment, the wireless power Tx mode may be
divided into a plurality of operation modes, and a reference level
provided to each of the plurality of modes may be adaptively
adjusted (or configured), based on a performed operation mode.
According to an embodiment, reference levels (e.g., a first
reference level and a second reference level) for the wired
charging period and the wireless charging period of the electronic
device 101 may be variously determined (or configured) in
consideration of the priority of a wired charging function for the
battery 510 and a wireless charging function for the external
device, based on a designated value of the remaining capacity of
the battery 510 of the electronic device 101.
Referring to FIG. 19, in operation 1901, the processor 120 of the
electronic device 101 may share wireless power with an external
device. For example, the processor 120 may initiate a wireless
power Tx mode (e.g., a Tx mode), based on user input.
In operation 1903, the processor 120 may determine a remaining
battery capacity (e.g., the SOC). According to an embodiment, the
processor 120 may identify the remaining battery capacity in
decimal units.
In operation 1905, the processor 120 may determine a configuration
level related to configuration of the reference level, based on the
remaining battery capacity. According to an embodiment, the
processor 120 may determine the configuration level to which the
determined remaining battery capacity belongs, based on a plurality
of configuration levels (e.g., a first configuration level and
second configuration level). According to an embodiment, FIG. 20
shows an example of configuration levels for respective remaining
battery capacity.
Referring to FIG. 20, for example, the configuration levels may
include a first configuration level 2010 (e.g., about 25%) and a
second configuration level 2020 (e.g., about 75%). According to an
embodiment, the first configuration level 2010 may include a
reference value {e.g., a designated remaining capacity of the
battery 510 (e.g., about 25% or less)} for determining wired
charging (e.g., the second charging mode) to be a priority mode
2003, and the second reference level 2020 may include a reference
value {e.g., a designated remaining capacity of the battery 510
(e.g., about 75% or more)} for determining wireless charging (e.g.,
the first charging mode) to be a priority mode 2005. According to
an embodiment, if the remaining battery capacity is between the
first configuration level 2010 and the second configuration level
2020 (e.g., greater than 25% and less than 75%), the processor 120
may determine a normal mode 2001 in which wired charging and
wireless charging are alternately performed based on a reference
level that is configured as default. According to an embodiment,
the processor 120 may determine whether or not the remaining
battery capacity is less than or equal to the first configuration
level, based on the remaining battery capacity. According to an
embodiment, if the remaining battery capacity is less than or equal
to the first configuration level, the processor 120 may perform
operation 1911, and if the remaining battery capacity exceeds the
first configuration level, the processor 120 may determine whether
or not the remaining battery capacity is greater than or equal to
the second configuration level. According to an embodiment, if the
remaining battery capacity is greater than or equal to the second
configuration level, the processor 120 may perform operation 1921,
and if the remaining battery capacity is less than the second
configuration level (e.g., if the remaining battery capacity is
between the first configuration level and the second configuration
level or is greater than the first configuration level and less
than the second configuration level), the processor 120 may perform
operation 1931.
If the remaining battery capacity is less than or equal to the
first configuration level 2010 in operation 1905 (e.g., "less than
or equal to the first configuration level" in operation 1905), the
processor 120 may determine a first priority mode in operation
1911. According to an embodiment, if the remaining battery capacity
is less than or equal to the first configuration level 2010 {e.g.,
a designated remaining capacity of the battery 510 (e.g., about 25%
or more)} for determining wired charging (e.g., the second charging
mode) to be a priority mode, the processor 120 may determine a
first priority mode in which the wired charging has a higher
priority.
In operation 1913, the processor 120 may configure a reference
level related to the first priority mode, based on the
determination of the first priority mode. According to an
embodiment, if the priority of a wired charging function of the
battery 510 is higher, the processor 120 may configure an increment
in the wired charging of the battery 510 to be relatively large.
For example, the processor 120 may be configured to charge the
battery by a first designated increment in the remaining battery
capacity, and may then perform wireless charging, thereby charging
an external device by a first designated decrement in the remaining
battery capacity of the battery 510. In this case, the charging
speed of the battery 510 may be increased.
If the remaining battery capacity greater than or equal to the
second configuration level 2020 in operation 1905 (e.g., "greater
than or equal to the second configuration level" in operation
1905), the processor 120 may determine a second priority mode in
operation 1921. According to an embodiment, if the remaining
battery capacity is greater than or equal to the second
configuration level 2020 {e.g., a designated remaining capacity of
the battery 510 (e.g., about 75%)} for determining wireless
charging (e.g., the first charging mode) to be a priority mode, the
processor 120 may determine a second priority mode in which the
wireless charging has a higher priority.
In operation 1923, the processor 120 may configure a reference
level related to the second priority mode, based on the
determination of the second priority mode. According to an
embodiment, if the priority of a wireless charging function of the
external device is higher, the processor 120 may configure an
increment in the wired charging of the battery 510 to be relatively
small. For example, the processor 120 may be configured to charge
the battery by a second designated increment in the remaining
battery capacity, and may then perform wireless charging, thereby
charging an external device by a second designated decrement (or a
first designated decrement) in the remaining battery capacity of
the battery 510. In this case, the charging speed of the external
device may be increased through a fast swap function.
If the remaining battery capacity is between the first
configuration levels and the second configuration level 2020 in
operation 1905 (e.g., "a normal level" in operation 1905), the
processor 120 may determine a normal mode in operation 1931.
According to an embodiment, if the remaining battery capacity is
between the first configuration level 2010 and the second
configuration level 2020 (e.g., greater than 25% and less than
75%), the processor 120 may determine a normal mode in which wired
charging and wireless charging are alternately performed based on a
reference level that is configured as default (e.g., the level
configured as default in the electronic device 101 without priority
of a wired charging function or a wireless charging function).
In operation 1933, the processor 120 may configure a reference
level related to the normal mode, based on the determination of the
normal mode. According to an embodiment, the processor 120 may
configure a reference level, based on basic configuration (e.g., a
configuration value designated by a user or a default value of the
electronic device 101) with respect to the wired charging function
of the battery 510 and the wireless charging function of the
external device.
As shown in FIGS. 19 and 20, according to an embodiment, the
electronic device 101 may adaptively configure a reference level,
based on the remaining battery capacity, thereby operating a
wireless power Tx mode. For example, the electronic device 101 may
operate by varying at least one of the first reference level or the
second reference level, based on the designated configuration level
of the remaining battery capacity. According to an embodiment, the
electronic device 101 may be configured to: if the remaining
battery capacity is less than or equal to 25%, operate in a mode
for prioritizing charging of the battery 510 (the first priority
mode); if the remaining battery capacity is greater than or equal
to 75%, operate in a mode for prioritizing wireless power
transmission (the second priority mode); and if the remaining
battery capacity is between about 25% and 75%, perform a switching
operation according to the level configured as default in the
electronic device 101 without determining the priority. For
example, if the remaining battery capacity is low, the electronic
device 101 may increase the charging speed of the battery 510 by
giving priority to wired charging through a relatively slow swap
function, and if the remaining battery capacity is high, the
electronic device 101 may reduce the charging speed of the battery
and increase the charging speed of the external device by giving
priority to wireless charging through a relatively fast swap
function, as shown in FIGS. 16A and 16B.
The electronic device according to various embodiments may be one
of various types of electronic devices. The electronic devices may
include, for example, a portable communication device (e.g., a
smartphone), a computer device, a portable multimedia device, a
portable medical device, a camera, a wearable device, or a home
appliance. According to an embodiment of the disclosure, the
electronic devices are not limited to those described above.
It should be appreciated that various embodiments of the disclosure
and the terms used therein are not intended to limit the
technological features set forth herein to particular embodiments
and include various changes, equivalents, or replacements for a
corresponding embodiment. With regard to the description of the
drawings, similar reference numerals may be used to refer to
similar or related elements. It is to be understood that a singular
form of a noun corresponding to an item may include one or more of
the things, unless the relevant context clearly indicates
otherwise. As used herein, each of such phrases as "A or B", "at
least one of A and B", "at least one of A or B", "A, B, or C", "at
least one of A, B, and C", and "at least one of A, B, or C", may
include any one of, or all possible combinations of the items
enumerated together in a corresponding one of the phrases. As used
herein, such terms as "1st" and "2nd", or "first" and "second" may
be used to simply distinguish a corresponding component from
another, and does not limit the components in other aspect (e.g.,
importance or order). It is to be understood that if an element
(e.g., a first element) is referred to, with or without the term
"operatively" or "communicatively", as "coupled with", "coupled
to", "connected with", or "connected to" another element (e.g., a
second element), it means that the element may be coupled with the
other element directly (e.g., wiredly), wirelessly, or via a third
element.
As used herein, the term "module" may include a unit implemented in
hardware, software, or firmware, and may interchangeably be used
with other terms, for example, "logic", "logic block", "part", or
"circuitry". A module may be a single integral component, or a
minimum unit or part thereof, adapted to perform one or more
functions. For example, according to an embodiment, the module may
be implemented in a form of an application-specific integrated
circuit (ASIC).
Various embodiments as set forth herein may be implemented as
software (e.g., the program 140) including one or more instructions
that are stored in a storage medium (e.g., internal memory 136 or
external memory 138) that is readable by a machine (e.g., the
electronic device 101). For example, a processor (e.g., the
processor 120) of the machine (e.g., the electronic device 101) may
invoke at least one of the one or more instructions stored in the
storage medium, and execute it, with or without using one or more
other components under the control of the processor. This allows
the machine to be operated to perform at least one function
according to the at least one instruction invoked. The one or more
instructions may include a code generated by a complier or a code
executable by an interpreter. The machine-readable storage medium
may be provided in the form of a non-transitory storage medium.
Wherein, the term "non-transitory" simply means that the storage
medium is a tangible device, and does not include a signal (e.g.,
an electromagnetic wave), but this term does not differentiate
between where data is semi-permanently stored in the storage medium
and where the data is temporarily stored in the storage medium.
According to an embodiment, a method according to various
embodiments of the disclosure may be included and provided in a
computer program product. The computer program product may be
traded as a product between a seller and a buyer. The computer
program product may be distributed in the form of a non-transitory
machine-readable storage medium (e.g., compact disc read only
memory (CD-ROM)), or be distributed (e.g., downloaded or uploaded)
online via an application store (e.g., PlayStore.TM.), or between
two user devices (e.g., smart phones) directly. If distributed
online, at least part of the computer program product may be
temporarily generated or at least temporarily stored in the
machine-readable storage medium, such as memory of the
manufacturer's server, a server of the application store, or a
relay server.
According to various embodiments, each component (e.g., a module or
a program) of the above-described components may include a single
entity or multiple entities. According to various embodiments, one
or more of the above-described components may be omitted, or one or
more other components may be added. Alternatively or additionally,
a plurality of components (e.g., modules or programs) may be
integrated into a single component. In such a case, according to
various embodiments, the integrated component may still perform one
or more functions of each of the plurality of components in the
same or similar manner as they are performed by a corresponding one
of the plurality of components before the integration. According to
various embodiments, operations performed by the module, the
program, or another component may be carried out sequentially, in
parallel, repeatedly, or heuristically, or one or more of the
operations may be executed in a different order or omitted, or one
or more other operations may be added.
While the disclosure has been shown and described with reference to
various embodiments thereof, it will be understood by those skilled
in the art that various changes in form and details may be made
therein without departing from the spirit and scope of the
disclosure as defined by the appended claims and their
equivalents
* * * * *
References